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