Use reduction formulas to evaluate the integral.

A. -  cot3 4x + cot 4x + C
B. -  cot3 4x - cot 4x + x + C
C. -  cot2 4x + cot 4x - x + C
D. -  cot3 4x + cot 4x + x + C

Answer: D

Mathematics

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Simplify.

A.
B.
C. 17
D. Not real number

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Evaluate the integral.

A.  tan2x - 7 ln + C or   tan2x + 7 ln + C
B.  sec2x - ln + C or   tan2x - ln + C
C. 5 sec2x + 7 ln + C or  5 tan2x + 7 ln + C
D.  sec2x - 7 ln + C or   tan2x - 7 ln + C

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Convert the base 10 numeral to a numeral in the base indicated.13562 to base 9

A. 835029 B. 60519 C. 15069 D. 205389

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Mathematics

Using the appropriate right triangle, find the exact value of the trigonometric expression.csc 45°

A.
B. 1
C.
D.

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Mathematics