Solve: 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Refer to this figure to answer the question. Assume 
and 
are parallel.
Are ?DEB and ?IEF vertical angles?
A. No B. Yes
Mathematics
Evaluate the expression.
A. 5 B. -1 C. 6 D. 1
Mathematics
Write the complex number in trigonometric form. Begin by sketching the graph to help find the argument ?.
?
What will be an ideal response?
Mathematics
Use the reference angle to find the exact value of the expression. Do not use a calculator.sin 
A. - 
B. - 
C. -1
D. 
Mathematics