Hello, I am having trouble with the following problem: If A and B are both acute angles and sin(A)=6/13 and cos(B)=48/49 find the value of cos9-A)-sin(-B). Write the answer as a simplified...

Hello, I am having trouble with the following problem: If A and B are both acute angles and sin(A)=6/13 and cos(B)=48/49 find the value of cos9-A)-sin(-B). Write the answer as a simplified...

Please help me answer the following question! I'm stuck! Prove that cos6ß + sin6ß = 1/4 + 3/4cos2ß I've tried simplifying out the LHS into (cos2ß)3 + (sin2ß)3,...

If the graph of y = sin(x) is shifted __?____ units left, the graph of y = cos(x) is obtained.

If sin(x) = 1/8 and x is in quadrant I, find the exact values of the expressions without solving for x. a) sin(2x) b) cos(2x) c) tan(2x)

If angle w is in quadrant III and cos w =a, what is cos(w+pi)?

This is for my trig class, thanks for the help! If you could, could you please show all your work? Thanks again!

I'm having trouble solving the above question, as well as the one below tan20+tan10/1-tan20tan10=

trigonometry

As well as this one below. I'm just having trouble understanding the process and steps. Find all the solutions in [0,2pi) sin^2(t)-cos^2(t)=0 3. Solve...

sin((pi)/(6))cos((pi)/(3)) - sin((pi)/(3))cos((PI)/(6))

1. Find the exact value of cos(t/2) if sin(t) = -7/25 and pi < t < 3pi/2 2. Find all the solutions in the interval [0,360] cos(2x)= - sqr...

The sine and cosine functions are used to model periodic behavior. find an internet resource that discusses the periodic behavior.

Find the missing angle below for 0°≤Ø≤90° cos Ø = 1/2

Without a calculator, find the exact value of: a) sin(120) b) cos(-3Π/4)

Match each sine value with an equivalent cosine value(s). sin(0) sin(pi/2) sin(pi) sin(3pi/2) ANSWER CHOICES cos(0)&cos(pi) cos(pi)&cos(3pi/2) c...

What's the value of x if pi≤x≤3pi/2 and sin x=5 cos x?

y=cos^4 *x+sin^4 *x

Consider the equation cos(3.14t)=-0.7. Find the smallest positive solution in radians and round your answer to 4 decimal places Consider the equation tan(3.25t)-6.6. Find the smallest...

(CosA-cosB)2 + (sinA-sinB)2 Can someone help me solve this? and what steps do we take ?

simply simplify the expression. i have to find out if my answer i have is right or wrong