Use identities to write the expression as a single function of x or ?.tan 
A. 
B. 
C. tan x
D. -tan x
Answer: A
Mathematics
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Write a numerical expression for the phrase and simplify it.The product of 2 and the difference between 5 and -6
A. 2[5 - (-6)]; 22 B. (2 - 5)(-6); 18 C. (2)(5) - (-6); 16 D. 2[-6 - 5]; -22
Mathematics
Find the derivative.y = x9
A. 9x8 B. 8x9 C. 8x8 D. 9x9
Mathematics
Find the sum.8 + (-3) + (-15) + 7
A. 13 B. 33 C. -3 D. -17
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find sin ?.
A. 
B. 
C. 
D. 
Mathematics