alg/trig
4,413 results, page 20

trig
Suggest a sine function that will "imitate" the cosine function by manipulating ONE of a,b,c or d. Thank you 
trig
Suggest a cosine function that will "imitate" the sine function by manipulating ONE of a,b,c or d. Thank you 
trig
Find the exact value of cot 45°, if the expression is undefined write undefined. 
trig
If A+B+C=^(^=180) prove that sinA + sinB  sinC = 4sinA/2 sinB/2 cosC/2 
Trig please help!
sin^6 x + cos^6 x=1  (3/4)sin^2 2x work on one side only! 
trig!!
sin^4 x (cos^2 x)=(1/16)(1cos 2x)(1cos4x) work one 1 side only! 
Trig
triangle with side lengths 172m, 155m, and 155m. calculate the area. 
trig
DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0 
trig
Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx)) 
Trig
Solve the equation in the interval [0•,360•] Csc theta = 1+cot theta 
trig
explain the methid used to get the answers 45m*cos33=37.7m and 45m*sin33=24.5 
Trig
How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b? 
trig
i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25 
trig
the question is: given sec x = 4, tan x < 0, find sin(2x), cos(2x)and tan (2x) 
Math/Trig
Solve: 2 cos2 x  3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi. 
trig
prove the identity sec^2x times cot x minus cot x = tan x 
trig
if sina,cosa,tana are in geometric progression then prove that cot^6acot^2a=1 
trig
convert the point with polar coordinates (2,7pi/6) into rectangular coordinates. 
trig
Verify the equation is an identitiy: cot(x)tan(x+pi)  sin(pix)cos((pi/2)x) = cos^2x Thanks 
trig
The tangent of an acute angle equals 1/2. What is the sine of the angle? (A) 1/p3 (B)p5/2 (C) 2/p5 (D) 1/p5 ( E) None of the above. 
trig
5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y? 
trig
How do I solve.... Tan 2(theta)  Cos 4(theta) = 0 Domain: (0360 degrees) Thank you. 
Math/Trig
Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L 
trig
solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð 3cos^2theta  5costheta 1 = 3sin^2theta 
trig
given cotA square root of 5, find cotB at the 4th quadrant. 
TRIG
Given that tanx = 1/sqr(15) and secx 4/sqr(15) find the value of sinx 
trig
if tan x= 4/3 and pip < x < 3pi/2, and cot y= 5/12 with 3pi/2 < y < 2pi find sin(xy) 
Trig
True or False: For a onetoone function, y = f(x),then x = F^1(y). Explain your answer. Please help. 
Precalculus with Trig
Rewrite the following expression as an algebraic expression in x: cos(arcsin(x)) 
trig
PROVE: Cos 2theta = .5 (cot theta  tan theta) Please help me 
math trig
a triangle abc has a mearsure of an adjacent 15 and 25 degree solve for the triangle 
PreCalc/Trig...
Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7 
PreCalc/Trig...
Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2 
PreCalc/Trig
How would I solve this one? I just can't get this one. 6x^2+11x35=0 
trig
solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b 
trig
A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road? 
Trig
Find the algebraic expression that is equal to sec theta  cos (theta) 
Trig
Find sin(x+y), cos(xy), tan(x+y), and the quadrant of (x+y) if sinx= 1/4, cosy= 4/5, with x and y in quadrant 3. 
Math (Trig) lowering powers
If cos^4(3x)sin^4(3x)=cos(g(x)) then g(x)=? Use a^4b^4=(a^2b^2)(a^2+b^2)! thanks in advance for any help! 
trig
if sec theta =sqrt 20/3 state the exact value of tan theta 
Math (Trig)
Solve the equation for exact values of x. sin(x) = 12(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" 
Trig Proofs
Please solve this proof Tan(pi/4 +x)+ Tan(pi/4+x)= 2Sec2x 
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/2x) 
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 Î± =sec Î± 
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
what quadrant is this in and please explain... sin theta < 0, cos theta > 0 
trig
Please explain to me how to get this  what quadrant tan theta < 0, sin theta < 0 is in. 
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(1cos(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. 1/1sinx + 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 
PreCalc/Trig...
Help me please. Simplify 1. √36 2. √625 
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, 
trig
sin2piexcos5piex Is this a sinusoid? No. because 2 pie x and 5 pie x are not the same/equal.? 
math
Trig Identities prove sinx+1 \ 1sinx = (tanx+secx)^2 
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 (AB) 
Trigonometry
Can you please help me solve this trig equation for 0 ≤ x ≤ 2π? 9sin^2(x)6cos(x)10=0 Thank you! 
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
1/sinx = sinx+cosxcotx it's a proof and I have to make them equal to each other. Please help!