The first "<" is a one with a line under it.

The first "<" is a one with a line under it.

Suppose a sales can be modelled by the equation; S=200+200cos[pi/6(t+2)] where t is time in months with t=0 corresponding to January for what month are sales...

sin(0)=(√0)/2 sin(π/6)=(√1)/2 sin(π/4)=(√2)/2 sin(π/3)=(√3)/2 sin(π/2)=(√4)/2 cos(0)=(√4)/2 cos(π/6)=(√3)/2 cos(π/4)=(√2)/2 cos(π/3)=(√1)/2 cos(π/2)=(√0)/2 Why...

I was messing with a calculator and found that the square root of 0.5 is equal to the sine and cosine of 45. I was just wondering the correlation between the two equations.

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,...

csc t = 3 and the terminal point of t is in Quadrant II.

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

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

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

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)

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...

trigonometry

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.

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

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

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

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...