Find the exact value of the expression.tan 2130°
A. - 
B. - 
C. 
D. 1
Answer: B
Mathematics
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L'Hopital's rule does not help with the given limit. Find the limit some other way.
A. ? B. -1 C. 1 D. 0
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = - 
, tan ? > 0Find cos(2?).
A. 
B. 
C. - 
D. 
Mathematics
Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 - 16x + 15 = 0
A. x2 + (y - 8)2 = 49 center (0, 8), r = 7 B. (x - 8)2 + y2 = 49 center (-8, 0), r = 7 C. (x + 8)2 + y2 = 49 center (-8, 0), r = 7 D. (x - 8)2 + y2 = 49 center (8, 0), r = 7
Mathematics
Solve the exponential equation. Use a calculator to approximate the solution to the nearest thousandth.e(x + 2) = 8
A. x ? 2.303 B. x ? 0.303 C. x ? 0.140 D. x ? 0.079
Mathematics