Choose the equivalent expression for the given expression.csc2x
A. 1 + tan2x
B. 1 - cot2x
C. 1 - sec2x
D. 1 + cot2x
Answer: D
Mathematics
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Use the Ratio Test to determine if the series converges or diverges.
A. Converges B. Diverges
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Find the limit.
ln (z
)
A. 0
B. ln 9
C. ln 
D. ln 81
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Solve the problem.What is the domain of the cosine function?
A. all real numbers, except integral multiples of ? (180°)
B. all real numbers, except odd multiples of 
(90°)
C. all real numbers
D. all real numbers from -1 to 1, inclusive
Mathematics
Perform the indicated operation.83.8 ml ÷ 0.5
A. 1,676 ml B. 41.9 ml C. 16.76 ml D. 167.6 ml
Mathematics