Find the exact value of the expression or state that it does not exist.sec[tan-1(-)]

A. - 
B. 2
C.
D.

Answer: B

Mathematics

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Use the properties of parallel lines to solve the problem.In the figure,      . m?ABC = 56°. Find the measures of angles ?ABE, ?FCD , and ?BCD.

A. m?BCD = 56°, m?ABE = m?FCD = 124° B. m?BCD = m?ABE = 56°, m?FCD = 124° C. m?BCD = m?ABE = m?FCD = 34° D. m?BCD = 56°, m?ABE = m?FCD = 34°

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Mathematics

Evaluate the integral.

A.  tan2x - 7 ln + C or   tan2x + 7 ln + C
B.  sec2x - 7 ln + C or   tan2x - 7 ln + C
C. 9 sec2x + 7 ln + C or 9 tan2x + 7 ln + C
D.  sec2x - ln + C or   tan2x - ln + C

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Mathematics

Solve. = 3

A. 20, 50 B. 50 C. 20 D. 20, 50, 0

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Mathematics

Indicate whether the inequality is true or false.10 ? -11

A. True B. False

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Mathematics