Find the exact value of the expression if ? = 60°. Do not use a calculator.f(?) = cos ?Find f(?).
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the indicated quantities for the appropriate arithmetic sequence.Find the sum of the first 102 positive multiples of 4.
A. 21012 B. 21218 C. 20604 D. 20808
Mathematics
Solve the equation.
= 4
A. 8 B. 4 C. -16 D. 16
Mathematics
Simplify the expression.1 - 
A. cos2x B. cot x csc x C. tan x sec x D. sin2x
Mathematics
Graph the function.f(x) = x3 + 2x2 - x - 2
A. 
B. 
C. 
D. 
Mathematics