Use a half-angle formula to find the exact value of the expression.tan 165°
A. -
+ 2
B. -
- 2
C. 
- 2
D. 
+ 2
Answer: C
Mathematics
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What will be an ideal response?
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Decide whether the given number is a solution to the equation preceding it.3m + 7 = 21; 4
A. No B. Yes
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A. 64x3 + 96x2 + 48x + 8 B. 16x2 + 16x + 4 C. 16x6 + 8x3 + 64 D. 64x3 + 96x2 + 96x + 8
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Find the distance d(P1, P2) between the points P1 and P2.
A. 2
B. 12
C. 12
D. 2
Mathematics