Use reference angles to find the exact value of the expression. Do not use a calculator.sin 
A. 
B. - 
C. -1
D. - 
Answer: B
Mathematics
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Solve the equation.
+ 
= 5
A. 40 B. 2 C. 1 D. 0
Mathematics
Determine the quotient.0 ÷ 27
A. 27 B. 0 C. 1 D. Undefined
Mathematics
Find the exact value using a double-angle identity.cos(450°)
A. 
B. -1
C. - 
D. 0
Mathematics
Graph the exponential function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics