Given that sin 0 = sin 20 cos 20= 13 and cos 0 <0, determine the values of the sine and cosine functions for 20. 85 (Type a simplified fraction.) (Type a simplified fraction.)

Q: Find sin π/4, cos π/4, and tan π/4.

A:

Q: M 8 V55 N

A: Given query is to find the the value of sinM.

Q: Simplify 12 sin 8x cos 8x

A:

Q: Solve a. sin x : 2 b. 2-8 cos? x = 0

A:

Q: Use a sketch to find the exact value of the expression sin (cos-1√2/ 2)

A: sincos-122

Q: Suppose that csc a = -(√5)/2  and 180° < a < 270°. Find the exact values of sin a/2 and tan a/2…

A:

Q: use half-angle formulas to find the exact value of cos(7π/8). simplify any complex fractions if…

A: