Determine the indefinite integral.
A. 
+ C
B. coth3 x + C
C. - 
+ C
D. coth3 x csch3 x + C
Answer: A
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Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).3 - 3
i
A. 6(cos 300° + i sin 300°) B. 6(cos 150° + i sin 150°) C. 3(cos 330° + sin i 330°) D. 3(cos 330° + i sin 330°)
Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.7.5 + (11.9 - 10.1) ? 14.4
A. 168.76 B. 133.92 C. 56.19 D. 33.42
Solve the problem.A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex? 
A. 100 m B. 5 m C. 1 m D. 25 m
Solve the problem.A flagpole casts a shadow of 36 ft. Nearby, a 10-ft tree casts a shadow of 2 ft. What is the height of the flagpole?
A. 0.6 ft B. 180 ft C. 7.2 ft D. 720 ft