Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.sin 495°

A.
B. - 
C.
D. - 


Answer: A

Mathematics

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Use the properties of exponents to simplify the expression. Write with positive exponents.

A. 9x1/14 B. 3x1/14 C. 9x13/14 D. 3x13/14

Mathematics

Graph the pair of parametric equations with the aid of a graphing calculator.x = cos t + 4 cos 3t, y = 5 cos t - 4 sin 3t, 0 ? t ? 2?

A.

B.

C.

D.

Mathematics

Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = ,B = 

A. B = A-1 B. B ? A-1

Mathematics

Add. + 

A.
B.
C.
D.

Mathematics