Find the exact value of the expression. Do not use a calculator.If tan ? = 2, find the exact value of cot 
.
A. 3
B. 2
C. 
D. 1
Answer: B
Mathematics
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Simplify the fraction.
A. 
B. 
C. 
D. 
Mathematics
Divide.
A. 630 B. 631 C. 6,310 D. 632
Mathematics
Multiply or divide and leave the answer in trigonometric notation.7(cos 39° + i sin 39°) ? 3(cos 16° + i sin 16°)
A. 10(cos 55° + i sin 55°) B. 10(cos 264° + i sin 264°) C. 21(cos 55° + i sin 55°) D. 21(cos 23° + i sin 23°)
Mathematics
Find the opposite of the integer.28
A. 0
B. 
C. -28
D. 28
Mathematics