Use the fundamental identities to simplify the expression.cos ? - cos ? sin2?
A. cos3?
B. sin ?
C. tan2?
D. sec2?
Answer: A
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Find the sum of the series.x7 + x8+ x9 + x10 + ...
A. 
B. 
C. 
D. 
Solve the problem.Points A and B are on opposite sides of a lake. A point C is 96.3 meters from A. The measure of angle BAC is 70°10', and the measure of angle ACB is determined to be 39°20'. Find the distance between points A and B (to the nearest meter).
A. 31 m B. 65 m C. 33 m D. 63 m
Use the percentage method of withholding to find the federal withholding tax, a 6.2% FICA rate to find the FICA tax, and 1.45% to find the Medicare tax. Then find the net pay for the employee. Assume that the employee has not earned over $115,000 so far this year.
Carla LaFong has gross earnings of $3576.57 weekly. She is married and has 2 withholding allowances.
A. $3,302.96 B. $2,894.66 C. $2,621.05 D. $3,984.87
Find sum of the pair of complex numbers.-3 + 7i, 9i
A. -3 - 2i B. 6 + 7i C. -3 + 16i D. 13i