
Math
An angle theta satisfies the relation (csc theta)(cos theta)=1 Give an example of information needed to determine a unique value for theta If sec theta is known to be negative, what is the csc theta value of theta?
asked by Saniya on February 23, 2017 
math
n angle theta satisfies the relation (CSC theta)(cos theta)=1 Give an example of information needed to determine a unique value for theta If sec theta is known to be negative, what is the CSC theta value of theta?
asked by ibsa on March 28, 2019 
trig
Find csc(theta), tan (theta), and cos (theta), where theta is the angle shown in the figure. Give exact values, not decimal approximations c=10 b=7 a=7.14 the right angle is locate between sides a and b and the theta angle is an acutle angle sides b and c.
asked by Joey on March 24, 2014 
trig
If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.
asked by Julise Alliance on February 28, 2013 
Precalculus
Circle O below has radius 1. Eight segment lengths are labeled with lowercase letters. Six of these equal a trigonometric function of theta. Your answer to this problem should be a six letter sequence whose letters represent the segment lengths that equal
asked by Human on September 24, 2016 
trig
Hi there! I NEED SERIOUS HELP, PLEASE!!! i have such a hard time with verifying identities! The question is: [(sin(theta/2)) / csc(theta/2)] + [(cos (theta/2) / sec(theta/2)] = 1 I have a few ideas on how to solve this, but am mainly not sure how to get
asked by stephani on June 11, 2014 
Math
Which of the following functions have a vertical asymptote for values of theta such that cos theta = 1? Select two answers. y = sin theta y = cos theta y = tan theta y = sec theta y = csc theta y = cot theta I know what all these functions look like, but I
asked by Max on February 10, 2018 
Calculus
I wanted to confirm that I solved these problems correctly (we had to convert the polar curves to Cartesian equations). 1.rcos(theta)=1 x=1 2.r=2*sin(theta)+2*cos(theta) r^2=2rsin(theta)+2rcos(theta) x^2+y^2=2y+2x (a little unsure what do next if this is
asked by Joshua on March 13, 2009 
Precalculus(NEED HELP ASAP PLEASE!!)
cot(theta)= 3 pi < theta < 3pi/2 Find: sin(theta)= 1 ? cos(theta)= 3 ? tan(theta)= 1/3 ? sec(theta)= 1/3 ? csc(theta)= 1 ? That's what I came up with, but they are not correct, PLEASE help me where I went wrong!!
asked by jh on March 28, 2010 
Math
1. Let (7, 4) be a point on the terminal side of (theta). Find the exact values of sin(theta), csc(theta), and cot(theta). 2. Let (theta) be an angle in quadrant IV such that sin(theta)=2/5. Find the exact values of sec(theta) and tan(theta). 3. Let
asked by Kandee Johnson on May 15, 2011 
trig
If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0
asked by Anonymous on January 26, 2012 
math;)
Julia wants to simplify the term sec^2 theta1/cot^2 theta+1 in a trigonometric identity that she is proving. Which of the following identities should use to help her? Select all that apply. (2 ANSWERS) a. sin^2 theta+cos^2 theta=1 b. sec^2 thetatan^2
asked by girly girl on April 23, 2018 
Physics
An object is shot at 20m/s at an angle theta. The object lands 24m away. What is the angle? Can you check if I am doing this right? I had v(initial) = 20 m/s g = 9.8 m/s^2 x = 24m 1st I solved for time: x = v(initial) t x = v(initial) cos(theta) t 24 = 20
asked by Dreskillz89 on September 22, 2009 
Precalculus
Which of the following are trigonometric identities? Select all that apply (there are 3 answers). A cos^2(theta)=sin^2(theta)1 B sin(theta)=1/csc(theta) C sec(theta)=1/cot(theta) D cot(theta)=cos/sin(theta) E 1+cot^2(theta)=csc^2(theta)
asked by Statten on March 6, 2018 
Trig
suppose that the angle theta is in the second quadrant, and that sin(theta)=1/3. Find exact values for cos (theta) and csc (theta)
asked by alicia otto on April 5, 2016 
PreCalculus
1.) Which of the following polar equations is equivalent to the parametric equations below? x=t^2 y=2t A.) r=4cot(theta)csc(theta) B.) r=4tan(theta)sec(theta) C.) r=tan(theta)sec(theta)/4 D.) r=16cot(theta)csc(theta) 2.) Which polar equation is equivalent
asked by line on May 18, 2018 
Precalculus check answers help!
1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.) Simplify (tan^2 theta +
asked by Kelsey on May 30, 2012 
Precalculus check answers help!
1.) Find an expression equivalent to sec theta sin theta cot theta csc theta. tan theta csc theta sec theta ~ sin theta 2.) Find an expression equivalent to cos theta/sin theta . tan theta cot theta ~ sec theta csc theta 3.) Simplify (tan^2 theta +
asked by Kelsey on May 28, 2012 
trig
Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).
asked by andy on May 10, 2011 
trig
Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).
asked by andy on May 10, 2011 
Calculus
If cos of theta= 7/12 and theta is in quadrant 2 then find a. tan(theta) cot (theta)= b. csc(theta) tan(theta)= c. sin^2(theta)+ cos^2(theta)=
asked by Bob on April 9, 2017 
math
Hi ! Here is my question: The pythagorean theorem gives the relationships between the sides of a right triangle. The following identities show the relationships between the trigonometric functions of a particular angle. sin^2(theta) + cos^2(theta) = 1
asked by Andrew on March 31, 2013 
Trig
Which expression equivalent to: cos(theta + pi/2). A)cos theta B)cos theta C)sin theta D)sin theta my book doesnt give examples of this but my crack at it would be C b/c distributive property? and 2cos theta = sin theta
asked by Jon on February 15, 2008 
Trig
1. Establish the identity: sin(theta+3pi/2)=cos(theta) 2. Find the exact value of 2(theta) if sin(theta)=5/13 3. Show that: csc2(theta)cot2(theta)=tan(theta) 4. Find the exact value of tan(cos^1(square root of 3/2) 5. Approximate the value rounded to
asked by Brittany on December 7, 2011 
Precalculus
I have a precalculus test tomorrow and I've been studying nonstop for the past few days but I've been struggling because it has been 8 years since the last math class I have taken. My question is about halfangle formulas, My professor taught us that they
asked by Tom on December 2, 2015 
Precalculus(NEED HELP ASAP PLEASE!!)
PLEASE HELP!! csc(theta)= 3/2 3pi/2 < theta < 2pi Find: sin(theta)= _____ ? cos(theta)= _____ ? tan(theta)= _____ ? cot(theta)= _____ ? sec(theta)= _____ ?
asked by jh on March 28, 2010 
Algebra II
Multiple Choice Which expression is NOT equivalent to 1? (theta) means 0 with dash in it. A.)sin^2 (theta)+cot^2 (theta) sin^2 (theta) B.)(sin^(theta))/(1cos(theta))cos(theta) C,)sec^2 (theta)+ tan^2 (theta) D.)(cot^2(theta) sin^2 (theta))/(cos^2(theta))
asked by HotMath on June 9, 2011 
math
knowing that 2(theta) can be written as theta + theta, find the expression for sin2(theta) and cos2(theta). Is it 2sin(theta)cos(theta)?
asked by Steve on March 31, 2013 
Trigonometry
I am having problems with proving identities that has a number and an exponent with it. Like: *2cosxcsc2x = cscx *sin^2 2x = 4sin^2 x cos^2 x *cot2(theta)=csc(theta)2sin(theta)/2cos(theta)
asked by Jam on October 29, 2014 
Math
Let (3,2) be a point on the terminal side of theta. Find cos theta, csc theta, tan theta?
asked by Chander on July 4, 2011 
trig
Given csc theta= 4, cot theta < 0 Find the exact values of cos theta and tan theta
asked by J on February 11, 2014 
Geometry
If theta is an acute angle of a right triangle and cos theta equals 3/8, what is the value of csc theta?
asked by Tyler on February 28, 2016 
Math
angle theta is in the standard position and 0'=
asked by Han on June 11, 2014 
maths
Xsin(theta)Ysin(theta)=sqrtX^2+Y^2 and cos^2(theta)/a^2+sin^2(theta)/b^2=1/X^2+Y^2 then find correct relation
asked by aakash on April 24, 2014 
Math Trig Help
sin theta = x/3, with theta in the first quadrant, find the expression for cos theta and tan theta. Answers will be in algebraic terms of x. Give exact answers with 0 < theta
asked by Leeroy on November 7, 2014 
trig
the terminal side of angle theta in standard position lies on the line that travels through point (9,1), find sin of theta, cos of theta, tan of theta. (give exact values)
asked by ardian gashi on May 1, 2011 
Trigonometric Functions
Determine the Value of all six trigonometric functions of theta when given? I need help. This is for my midterm review, if anyone is willing to help, I'd appreciate it. a) sin theta= 3/5 and theta is in quadrant 1. b) tan theta= 2 and theta is in quadrant
asked by Mike on January 6, 2008 
maths
Xsin(theta)Ysin(theta)=sqrtX^2+Y^2 and cos^2(theta)/a^2+sin^2(theta)/b^2=1/x^2+Y^2 then find the relation
asked by aakash on April 24, 2014 
Maths complex numbers
Find tan(3 theta) in terms of tan theta Use the formula tan (a + b) = (tan a + tan b)/[1  tan a tan b) in two steps. First, let a = b = theta and get a formula for tan (2 theta). tan (2 theta) = 2 tan theta/[(1  tan theta)^2] Then write down the equation
asked by Jake on February 13, 2007 
Precalculus(NEED HELP ASAP PLEASE!!)
PLEASE HELP!! sin(theta)= 1/3 pi/2 < theta < pi Find: cos(theta)= ______ ? tan(theta)= ______ ? cot(theta)= ______ ? sec(theta)= ______ ? csc(theta)= ______ ?
asked by jh on March 28, 2010 
Calculus
Which is the correct cofunction identity for (tan theta?) A csc(90degrees  theta) B sec (90degrees  theta) C sin (90degrees  theta) D cos (90degrees  theta) E cot (90degrees  theta)
asked by Philip on November 28, 2012 
science
Sitting on a horizontal track is a mass of 10kg. One end of the track is raised untill the mass just begins to slip. If the coeffieient of static friction is .4 what is the minimum angle at which the mass begins to slip? mgSinTheta = mg*mu*CosTheta
asked by Henry on August 24, 2006 
trigonomtry
can you correct the rest for me please? Express each as a function of theta: a. sin (270deg + theta)= cos theta b. cos (pi + theta)= cos theta c. tan (810 + theta)= ????? d. sin (theta  180)= sin theta
asked by Anonymous on February 8, 2011 
trigonometry
can you correct the rest for me please? Express each as a function of theta: a. sin (270deg + theta)= cos theta b. cos (pi + theta)= cos theta c. tan (810 + theta)= ????? d. sin (theta  180)= sin theta
asked by Anonymous on February 8, 2011 
trigonometry
can you correct the rest for me please? Express each as a function of theta: a. sin (270deg + theta)= cos theta b. cos (pi + theta)= cos theta c. tan (810 + theta)= ????? d. sin (theta  180)= sin theta
asked by anon on February 11, 2011 
trig
sin(theta)cos(theta)sec(theta)csc(theta) How do I simplify
asked by stacey graham on May 5, 2010 
Precalculs
I have no idea how to do these type of problems. Problem Solve each equation on the interval 0 less than or equal to theta less than 2 pi 42. SQRT(3) sin theta + cos theta = 1  There is an example prior to the
asked by Kate on February 28, 2010 
math
Another: theta is a second quadrant angle in standard position and tan theta =  (sqrt5)/(2) . Find the exact value of cos theta. I assume I use the equation 1 / cos(theta)^2 = 1 + tan (theta)^2 However how does this work out algebraically?
asked by Adam on March 31, 2013 
precalc h
sin(theta)/1cos(theta) + 1cos(theta)/sin(theta) = 2csc(theta) That question makes absolutely no sense.. could someone help me? or lead me in the direction to figuring it out? and.. (Beside the trig functions is theta) 1+1/cos = tan^2/sec1
asked by sam on December 9, 2012 
Precalculus 2
Similiarly to a question I asked previously I took the same approach. the problem is: what value(s) of theta solve the following equation? cos(theta)sin(theta)  2 cos(theta) = 0? I let Cos theta = X and sin theta = X unfortunately I end up with something
asked by Greg on November 14, 2012 
Trigonometry
Okay, I have been given a trigonometric equation to solve (sin^2(theta) + cos(theta) = 2). So far, I have been able to use the Pythagorean identity to get (cos^2(theta) + cos(theta)  1 = 0), which I then multiplied by 1 on both sides to get:
asked by Veronica on March 24, 2011 
math
put these polar equations into cartesians form: 1) theta=135 degrees 2)rcostheta=1 for #1 is it like: (1,1)? and for #2, X=1, but i cant find y, any help is appreciated The slope should be sin(theta)/cos(theta) and the intercept is the origin.
asked by hmmmm on September 25, 2006 
math;)
What is a simplified form of the expression (sec^3 theta)  (sec theta/cot^2 theta)? a. 0 b. sec thetatan theta c. cos theta d. sec theta***** Every time I attempt to work out this problem I end up with one. I know the answer is sec theta, but I do not
asked by girly girl on April 27, 2018 
Trigonometry
Prove the following identities: 1. (tan theta  sin theta)^2 + (1cos theta)^2 = (1sec theta) ^2 2. (12cos^2 theta) / sin theta cos theta = tan theta  cot theta 3. (sin theta + cos theta ) ^2 + (sin theta  cos theta ) ^2 = 2 Thank you so much! :)
asked by Fern Angel on April 21, 2016 
Trigonometry
Prove the following identities: 1. (tan theta  sin theta)^2 + (1cos theta)^2 = (1sec theta) ^2 2. (12cos^2 theta) / sin theta cos theta = tan theta  cot theta 3. (sin theta + cos theta ) ^2 + (sin theta  cos theta ) ^2 = 2 Thank you so much! :)
asked by Fern Angel on April 22, 2016 
Algebra II
Verify that (sec theta/sin theta)(cot theta/csc theta) = csc theta is an identity. Thanks
asked by Lucy on April 19, 2008 
Trigonometry
Thank you STEVE!!!!! Suppose that Cos (theta) = 1/square root 2 if 0
asked by George on January 23, 2013 
Calculous
Evaluate sin(theta) and cosine (theta) for the angle theta The graph gives you a point of (0.6,0.8) on the x y coordinate plane with a radius of what appears to be 1 ( unit circle ) sin (theta) = cos (theta) =
asked by Larry on October 31, 2014 
math (trig)
if cos 2 theta = (1/3) and theta is in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta
asked by Jeff on January 20, 2011 
trigonometry
I need help in understanding how to identify which identity to use. using this question as an example. Show that tan theta (sin theta+cot theta cos theata)all over cos theta = sec^2 theta. Please explain.
asked by lindsay on May 4, 2012 
Optimization
min 2x+y subject to: x+y+z=1 and y^2+z^2=4 Any help would greatly be apprecaited. y^2+z^2=4 > put y = 2 cos(theta) and z = 2 sin(theta) x+y+z=1 > x = 12(cos(theta) + sin(theta)) 2x + y = 2  2 cos(theta)  4 sin(theta) It's not difficult to find
asked by Dre on December 7, 2006 
Trig
The point (5/12) is on the terminal side of an angle theta in standard position. Find Sin theta, cos theta and tan theta Thank You!
asked by Lauren on September 21, 2011 
PreCalculus
Which is the polar form of the parametric equations x=5cos(theta) and y=5sin(theta) ? a. r= 5(theta) b. r= 5 c. r= 25 cos (theta) sin (theta)***** d. r= 25cos^2 (theta) + 25sin^2 (theta) Which is the polar form of the parametric equations x=4t and y=t^2?
asked by Vsuf on May 22, 2018 
Math
Given angle theta is bigger than 0 and smaller than 360, determine two possible values of theta where each ration would be true. a) cos theta= 0.6951 b)sin theta= 0.7571
asked by Emily on December 4, 2010 
Algebra II
Which of the following expressions are not equal to 1? A) sin^2 theta + cot^2 theta sin^2 theta B) (sin^2 theta/1cos theta)cos theta C) sec^2 theta + tan^2 theta D) cot^2 theta sin^2 theta/cos^2theta Answer: D
asked by Lucy on April 19, 2008 
Calculus
Below are the 5 problems which I had trouble in. I can't seem to get the answer in the back of the book. Thanks for the help! lim (thetapi/2)sec(theta) theta>pi/2 Answer: 1 I am not sure what to do here. lim (tan(theta))^(theta) theta>0+ Answer:1
asked by Anonymous on February 17, 2008 
Mathamatics
Solve the following trigonometry identities. a) 1cos2(theta) = sin(theta)cos(theta)/cot(theta) b) (1cos2(theta))(1tan2(theta))=sin2(theta)2sin4(theta)/1sin2(theta) *its supposed to be cos to the power of two, sin to the power of four, etc. There is
asked by Zoë on May 28, 2014 
related rates with work shown
this is a relate rates problem in calculus in a right triangle, the hypotenuse is 5 and the vertical side is x and the angle is theta. so if theta increases at a constant rate of 3 radians per minute, at what rate is x increasing in units per minute when x
asked by Anonymous on April 15, 2007 
math
I have a question I have been working on since yesterday and I am not making this up. I couldn't get the right answer. If sin theta = 2/3, which of the following are possible? A: cos theta= the sqr rt of 5/3 and tan theta =2/3. B: sec theta = 3/the sqr
asked by lisa on November 21, 2013 
math
given that csc(theta) =3 and cos(theta)>0, find the remaining 5 trigonometric functions of theta. i have my triangle graphed in the fourth quadrant but I'm getting confused because of the negatives...
asked by Preston on August 28, 2011 
precalc pre ap
If theta is a rotation angle that terminates in quadrant ll and sin of theta is 5/13, find cos of theta and tan of theta. Use the first Pythagorean identity to solve for cos of theta and use quotient identity to solve for tan of theta.
asked by lore on December 2, 2012 
trig
h t t p : / / i m g 4 0 . i m a g e s h a c k . u s / c o n t e n t . p h p ? p a g e = d o n e& l = i m g 4 0 / 1 4 8 / a s d a s d y e . j p g & v i a = m u p l o a d (def of tan theta = a^1 o)a = o opposite = adjacent tan theta written with respect to
asked by trig on September 6, 2009 
math
How do I solve a this problem under the given conditions? cos(2[theta]) csc[theta]=4/3, tan[theta]>0
asked by Alex on November 26, 2009 
trig
how do you solve cot theta divided by csc theta is equal to cos theta?
asked by mak on May 9, 2008 
Math
Let (7,3) be a point on the terminal side of theta. Find the exact values of sin of theta, csc of theta and cot of theta?
asked by Justin on November 29, 2016 
math
write each expression in terms of sine and cosine: csc^3 theta/cot theta * tan^2 theta/sec^2 theta
asked by anonymous on February 7, 2013 
calculus
conic sections prove that the line x2y+10=0 touches the ellipse 9x^2+64y^2=576 show that the equation of the normal to the ellipse x^2/a^2 + y^2/b^2 = 1 at the point (a cos theta, b sin theta ) is ax sin theta  by cos theta  (a^2b^2) sin theta cos
asked by Kelly on June 28, 2008 
MATHS TRIGONOMETRY
if 3sin theta =2 and cos greater than 0,with the aid of a diagram determine the value of: a) tan theta b) sin theta/cos theta c) sin^2 theta + cos^2 theta
asked by LERATO VINJWA on May 23, 2016 
trig
If the point (3,0) lies on the terminal side of angle theta in standard position find: a) csc theta b) cot theta
asked by Anonymous on January 26, 2012 
Algebra II
Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)Which expression is equivalent to tan(theta)(sec(theta))/(sin(theta))? A.)cot(theta) B.)cot(theta) C.)tan(theta)cot(theta) D.)tan(theta)sec^2(theta) 2.)Find the exact value of:cos 375
asked by HotMath on June 9, 2011 
Trigonometry
I don't understand how I'm supposed set the problem up or what theta is... Use the given function value(s), and trigonometric identities (including the cofunction identities), to find the indicated trigonometric functions. sec theta = 5, tan theta 2 *
asked by Chris on April 23, 2009 
Math Trig Please Help!!!
Find exact values for all the solutions to the equation cos theta = sqrt 3/2 for 2pi
asked by George on November 7, 2014 
St Kabir
Find theta if sin(theta+36°)=cos theta where theta +36 is an acute angle
asked by Amrit on July 26, 2015 
trig
find an expression equivalent to sec theta sin theta cot theta csc theta
asked by Anonymous on December 8, 2011 
precalculus
For the acute angle with sin theta=3/5, find cos theta, tan, cot, csc, sec.
asked by tina on December 3, 2009 
Math
if sin theta =1/2 and cos theta= √(3)/2. find tha values of tan theta, cot theta and csc. This question didn't ask for sec, but i am just curious what the answer for sec, can someone show me the answer for sec
asked by anonymous on March 7, 2019 
maths
Xsin(theta)Ysin(theta)=rootX^2+Y^2 andcos^2(theta)/a^2+sin^2(theta)/b^2 then find correct relation
asked by aakash on April 24, 2014 
Math11U
Cos^2(theta)3csc(theta)+2 divided by csc(theta)1
asked by Kitkat on July 21, 2010 
Math
How do I simplify csc theta cos theta tan theta?
asked by Anonymous on August 2, 2009 
math
The diagram shows a sector OAB of a circle, centre O and radius10 cm. Angle AOB is theta radians. The point C lies on OB and iss such that AC is perpendicular to OB. The region R is bounded by the arc AB and by the lines AC and CB. The area of R is 22cm^2
asked by James on March 16, 2013 
Trig
Find the exact values of sin 2 theta, cos 2 theta and tan 2thea using the double angle formula sin theta = 3/4 , pi/2 < theta < pi
asked by Jiskhaa on April 8, 2013 
Maths
a) Express f(theta) = 4cos theta  6sin theta in the form r cos(theta + alpha) b) Hence find the general solution of the equation 4cos theta  6sin theta =5 c) Hence, find the minimum value of the function 1/4+f( theta)
asked by Becky on April 23, 2019 
Confuses how my teacher got this?
The question says "Given that cos(theta)=(7/25) and sin(theta)>0, calculate the exact values of tan(theta) and csc(theta). We start out by drawing a triangle. 25 is on the side of the hypotenuse and 7 is on the adjacent side, because cos is adjacent over
asked by Jill on December 9, 2011 
trig
express 20sin theta + 4 cos theta as R sin(theta + alpha) R sin(theta + alpha) = R cos(alpha)sin(theta) + R sin(alpha)cos(theta) > Rcos(alpha) = 20 Rsin(alpha) = 4 The xy coordinates of a point on a circle of radius R that makes an angle og alpha with
asked by paul c on November 24, 2006 
Precalculus
Solve for the equation in the given domain. (tan theta)(sec theta)=tan theta theta E{real numbers of degrees} BY THE WAY, REMIND ME IF THIS IS THE CORRECT WAY TO FIND THE ANGLE OF... sec theta=2 To find the angle do you set it up like this?? 1/(cos^1)(2)
asked by Anonymous on November 17, 2013 
trig
Hi, I need to find the domain and rnge of the following: 1. X= 1/2 (cos theta + theta sin theta) Y=1/2 (sin theta  theta cos theta) total guess here, but here goes Domain cos theta = +/ 1 and domain sin theta = +/ 1 so domain theta sin theta = 0
asked by Courtney on October 31, 2011 
Advanced Math
Identify the polar form of the linear equation 4x+3y=10. x=rcos(theta),y=rsin(theta) 4x+3y=4rcos(theta)+3rsin(theta)=10 r=10/(4cos(theta)+3sin(theta) I got it wrong
asked by Jon on August 6, 2009 
Math
Find the acute angle theta that satisfies the given equation. Give theta in both degrees and radians. cot(theta)=1/sqrt(3) The value of theta in degrees is (BLANK) degrees and in radians is (BLANK). Thank you!!
asked by Jonah on November 6, 2018 
PreCalculuscheck answers
If cos theta = 0.8 and 270
asked by Lucy on August 31, 2008 
Math
Fin the value of Theta if sec theta=3 I inverted the value of sec theta to get cos theta=1/3 I then said Theta=cos1 (1/3) Is thus correct? What is the answer rounded to the tenths place?
asked by Maddy on February 18, 2015
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