By making a table of both the left and right sides of the equation, conjecture if the equation represents an identity. cos2 ? + cot2 ? + sin2 ? = csc2 ?
A. Yes
B. No
Answer: A
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = xln x
A. xln x - 1ln x
B. 2xln x - 1ln x
C. 
D. 
2
Find the mode(s) for the given sample data. Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mode(s).56?61?5951?54?6268?5850
A. 57.7 B. 56, 61, 59, 51, 54, 62, 68, 58, 50 C. No mode D. 58
Solve the problem.The gross national product for the United States was 
. Round this amount to the nearest hundred-billion.
A. $50,120,000,000,000 B. $50,000,000,000,000 C. $50,100,000,000,000 D. $50,118,000,000,000
Determine the area or volume as indicated. Use 3.14 for ? when necessary.
Find the volume.
A. 439.6 ft3 B. 3077.2 ft3 C. 769.3 ft3 D. 219.8 ft3