Trig check my work please?

89,108 results, page 70

@the dude

I have removed the entire test you posted -- without any thoughts of your own, sad to say. If you wish to post the 4 or 5 that you absolutely cannot figure out after reading and re-reading your text, please do so, but be sure to include what YOU THINK the answers are. Then ...

@Cray

I have removed the entire test you posted -- without any thoughts of your own, sad to say. If you wish to post the 4 or 5 that you absolutely cannot figure out after reading and re-reading your text, please do so, but be sure to include what YOU THINK the answers are. Then ...

Writing

Would you please proof read and give any suggestions on making this a polished piece? For the past three months work-related problems have occurred, causing conflicts among co-workers. The ongoing problems require attention in order to better assist our daily clients. The in-...

Chemistry

Determine the simplest formula for compounds that have the following analyses. The data may not be exact. A. 28.5% iron, 48.6% O, 22.9% S This is what I did: 28.5g Fe 1 mole Fe/55.847g = .51 mole 48.6g O 1 mole O/15.999g = 3.04 mole 22.9g S 1 mole S/32.064g = .71 mole (Fe1.0 ...

Chemistry

How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the balanced chemical equation and how that affects the...

Math (Trig)

Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2

simplyfying expressions (trig)

can anyone tell me how to do this? thanks! (sin (x) / 1 + cos (x) ) + ( cot (x) / 1 + cos (x) )

Algebra II/Trig

Simplify: 1/5(-5a^2b^3)^2(abc)^4 How do you simplify this. How does the "-5" play a role in this? how would you get 1/5 of "-5"

11th grade Algebra 2/ Trig

The expression log 10^(x+2)- log 10^x is equivalent to???

trig

unsure how to find phase shift,vertical shift of y=-2cos(x+3.14/4)+5

trig

determine the coterminal angle between -360 and 360 for -540

trig

How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8

trig

How do you convert polar coordinates to Cartesian coordinates? And vise versa.

trig

tan(theta)=(7/24), sin(theta)<0 find cos(2theta)

Trig

Tan theta 12/5 ,pi <theta<3pi/2 Find sin 2theta

trig

If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =

trig

Plot the point and then find three representation of the point (3,2pi/3)

trig

Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).

trig

let sin theta = -7/25 with theta in QIV find sec (2theta)

trig

True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

trig

angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)

trig

an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.

trig

how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0

trig

Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α

trig

Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?

trig

Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2

trig

1.Ifg(x)=cos4x,find g'(pie/24). 2.Differentiate y=csc^2 pie*x

trig

To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25

Trig

Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi

trig

A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13

trig

Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx

trig

Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25

trig

If csc theta = 2, then what is theta approximated to 4 decimal points? RADIANS

math/cal/trig solve for t

solve for t: 0=4sin(2t)cos(2t)-sin(2t)

trig

If sec theta = radical 5, what is the exact value of cos theta

trig

If sec theta = radical 5, what is the exact value of cos theta

trig

find the single term of cos^2 4theta - sin^2 4theta

Precalc/Trig

Find all values of x, 0<x<(pi/2) for which (1/( root 3))<cotx<(root 3)

trig

Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?

Trig

The point P(3, 4) is on the terminal side of θ. Evaluate tan θ. 3/4 3/5 4/3 4/5

Trig

How do I prove that tan(x/2) =( plus/minus) sqrt(1-cos(x/1+cos(x))

Trig

Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.

Trig

Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x

Advanced Functions/Trig

Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)

trig, math

In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?

trig

Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0

math trig

a triangle has a measured of hypoteneuos 15 and an adjacent of 10 solve for the triangle.

Trig

Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x). 12/13 5/13 -12/13 -5/13

trig

If each leg has length 5 meters, what are the lengths of the other leg and the hypotenuse

Trig

Solve for t algebraically: inverse cos(t) = inverse sin(t). Where do I start?

Trig

Is a triangle that has sides which measure 8, 15, and 17 a right triangle? Justify your answer, ie,

math

Trig Identities prove sinx+1 \ 1-sinx = (tanx+secx)^2

FINANCE

Direct send-Single. Ocean Research of San Diego, California, just received a check in the amount of $800,000 from a customer in Bangor, Maine. If the firm processes the check in the normal manner, the funds will become available in 6 days. To speed up this process, the firm ...

Finance

Direct send-Single. Ocean Research of San Diego, California, just received a check in the amount of $800,000 from a customer in Bangor, Maine. If the firm processes the check in the normal manner, the funds will become available in 6 days. To speed up this process, the firm ...

English 7 - Check in My Notebook Day (plz read)

Ok tomorrow at my school we are having Check in My Notebook Day. It's a day when all of your teachers check your binder and/or notebook to see if you have all of your handouts they have you, notes you take in class, you date each classwork papers in order, and papers don't ...

Physics

A system undergoes a two-step process. In the first step, the internal energy of the system increases by 368 J when 144 J of work is done on the system. In the second step, the internal energy of the system increases by 24 J when 248 J of work is done on the system. (a) For ...

One more Chem

One more A helium balloon has a volume of 2.30 L at 23.5 deg C and a pressure of 1.00 atm at sea level. the ballon is released and floats upward. At a certain height the atmospheric pressure is 0.810 atm and the temp is 12. C. What is the volume of the balloon? ????? ??? (P1V1...

PE CHECK ANSWERS

15. Who should address the needs of a patient with a mental disorder? A. speech therapist B. An internal Medicine Doctor C. A mental health Professional*** D. A medical intern 12. If you've started a lot of hobbies all at once, you should watch out for clinical depression to ...

trig

convert 80 degrees into radians 80 deg *2PI rad/360 deg = ?

Trig

Find the area of ABC if A=56 degrees, b=20ft, and c=12ft. 1/2(20)(12)sin56 1/2(240)sin56 99.5

Trig

Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)

trig

If sinx = -3/5, tan x > 0, sec y = -13/5 and cot y < 0, find the following: a. csc(x + y) b. sec (x - y) How do I get the answers of a. -65/33 b. -65/16 Thank you

trig - identies

Assume that A and B are in standard position and that sin A = 1/2, cos A >0, tan B = 3/4, and sinB<0 Cos (A-B)

Trig

Rules of Logarithms: Can someone explain how to do: 1) e^(2(ln)(x)) 2) e^(-lnx) I know the rules I just don't understand how they apply.. thanks!

trig

Given that sin(5x-28)degree=cos(3x-5),0 lessthan x lessthan 90degree,find the value of x.

trig

find the fundamental solution set (FSS) for(cos2θ)(tanθ+1)=0

Trig

Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2)

trig

given that tan(x/2)=a. Express tan(x) and sin(x) in terms of a. Hint: use that fact that x= 2*(x/2)

Trig.

In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B?

Pre- cal Trig

2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do?

Trig, Math

State the amplitude, period, phase shift, and vertical shift of f(x)=2cos(1/2x-pi/6)-1/3

Math/Trig

Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.

trig

Cos theta= 1/3, find the remaining trigonometric functions of the acute angle theta

trig

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.

trig

if x and y are positive acute angles, tan x=1/3and tan y =1/4, find the value of sin(x-y)

trig

Use the appropriate identity to find tan(theta) given that cot theta =0.05.

trig

Given that sin theta= 3/5 and the terminal side is in quadrant II, find tan (pi/2 - theta)

trig

whatis the possibilities for the square root of 2 times tan theta = 2 sin theta

trig

a right triangle contains a 25 angle. if me leg is of length 5 inches what is the length of the hypotenuse

Trig

Prove that the equation is an identity: cot4theta - csc4theta = -cot sq theta - csc sq theta How ??

Trig

3. In the figure below, the perimeter of the parallelogram ABCD is (6a + 8b + 29) and the perimeter of the triangle ACD is (3a + 4b + 32). What is the length of AC

Trig

cos45cos25 - sin 45sin25 = ?? a. cos70 b. sin70 c. cos 20 d. sin 20 which answer is correct ?

Trig

If the center of a circle is at (2,2) with a radius of 4 the equation of the graph would be : a) (x-2)^2 + (y-2)^2 = 16 b) (x+2)^2 + (y+2)^2 = 16 I think it would be b is that correct?

trig

A ship sails 40 miles SOUTH and 15 miles EAST. Find the bearing from where it began? HELP.

trig

find all the values of X between 0 and 2π such that cos(3x-π/2) = √3/2

Trig

Is the angle 11pi/12 on the unit circle the same as the angle -pi/12? I'm thinking it would be, but I'm not sure.

Trig

What is the exact value of tan(s+t) if sin(s+t)=56/65. And cos(s)=5/13 and sin(t)=4/5. Everything is in the first quadrant

trig

If it is given that tan(A-B)=tanA-tanB/1+tanAtanB and tanP-1/1+tanP=tan195 find p

Precalc with Trig

What value(s) of x from 0 to 2pi solve the following equation: cos squared x - cos x - 6 = 0

trig

find the minimum and maximum value of sin100 degree plus cos100 degree

Trig

Evaluate and simplify cos(-15º). Hint: Substitute 30º-45º for -15º.

trig.

If P (x, y) is the point on the unit circle determined by the real number θ, then tan θ= x/y y/x 1/x 1/y

Trig

If the terminal side of an angle theta contains the point (-1,3), find secant theta.

Trig

Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(A-B).

statistics/ please help ASAP

a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? b) what % of scores is between 500 and 700? c) what would the percentile rank for a score of 700 *please show and answer all ...

Calculus - Integrating

Question: ∫(x^2)/sqrt(x^2+1) u=x^2+1 , x^2= u-1, du=2xdx ∫(u-1)/sqrt(u) , expand ∫u/sqrt(u) - 1/sqrt(u) Integrate: 2/3(u^(3/2)) - 2u^(1/2) + c My answer: [ 2/3(x^2+1)^(3/2) - 2(x^2+1) + c ] When I took the derivative of this to check my answer, it was not (x^2)/sqrt(x^2+...

Grammar and Composition

please check: indicate the relationship of each pair by writing S for synonyms, A for antonyms, and H for homonyms. 1. here/hear : H 2. opinioned/unyielding : A? 3. altogether/all together : H 4. misunderstood/misinterpreted : S 5. moderate/excessive : A 6. course/coarse : H 7...

To Reiny

Reiny could you please check my Calculus post below, it says Calculus--Reiny.

bobpursly & countiblis,math

I thought that we can solve anything with equations is it always polynomials. Isn't this the same thing as finding the unknown for an equation. As i said in my previous message or am i wrong. Also what about the rational expressions what are some challenges about working with ...

As physics

Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge Calculate the number of free electrons per metre length of ...

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