Use a trigonometric substitution to evaluate the integral.

A. tan-1 7 - tan-1 
B. tan-1 3 - tan-1 7
C.  tan-1 7 -  tan-1 
D. tan-1  - tan-1 7

Answer: A

Mathematics

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Perform the requested operation on the given function.f(x) = 7x - 8, g(x) = 4x - 4Find (g - f)(x).

A. -3x + 4 B. -3x - 12 C. 3x - 4 D. 3x - 12

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Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.50°

A. 410°; -310° B. 410°; -130° C. 140°; -40° D. 230°; -130°

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Mathematics

Simplify the expression. Write the answer using positive exponents.(xy)-8

A. -8xy
B.
C. -x8y8
D.

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Find a simplified form of the difference quotient for the function.f(x) = 

A.  
B. - 
C.  + 
D.  

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Mathematics