Write as a trigonometric function of a single angle, then evaluate. Round to the nearest ten-thousandth when necessary.
A. tan 10° ? 0.1763
B. tan 68° ? 2.4751
C. tan(-10°) ? -0.1763
D. tan 68° ? 0.404
Answer: B
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Evaluate the integral.
A. 
tanh (10x - 9) + C
B. 
coth (10x - 9) + C
C. tanh (10x - 9) + C
D. 
sech3 (10x - 9) + C
Provide an appropriate response.What form do planes perpendicular to the y-axis have in cylindrical coordinates?
A. r = a sin ? B. r = a sec ? C. r = a csc ? D. r = a cos ?
Evaluate the derivative at the given value of x. If y = x4 + 5x3 - 2x + 2, find 
A. -16 B. 11 C. -14 D. 9
Provide an appropriate response.Suppose a student finds that a function has exactly one critical point, determines that the point locates a maximum, and immediately concludes that the function has no minimum. What can you say about the x-interval considered by the student?
A. The interval is closed. B. The interval is not closed, does not have endpoints, or does not contain its endpoints. C. The interval must be the real line. D. The endpoints of the interval yield values for the function that are larger than the value at the critical point.