Use the substitution formula to evaluate the integral.
A. 7
B. 14
C. 28
D. -7
Answer: B
Mathematics
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A. 
B. 
C. - 
D. - 
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Determine the specific solutions (if any) to the equation on the interval [0, 2?).(tan ? + 1) (sin ? - 1) = 0
A. 
, ?, 
B. 0, 
, 
C. 
, 
, 
D. 
, 
, 
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A. 
B. 
C. 
D. 
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Evaluate the derivative at the given value of x. If f(x) = 
, find f'(9).
A. 
B. 
C. 
D. 
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