An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.(x2 - 1)1/2 ? 
(2x + 5)1/2 ? 2 + (2x + 5)3/2 ? 
(x2 - 1)-1/2 ? 2x
A. (x2 - 1)1/2 (2x + 5)-1/2(5x2 + 5x - 3)
B. (x2 - 1)1/2 (2x + 5)1/2(5x2 + 5x - 3)
C. 
D. 
Answer: C
Mathematics
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A. 
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C. 
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= ?
A. csc2 ? + tan2 ? B. csc ? tan ? C. 1 D. sin ? + cos ?
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Use l'Hospital's rule, if applicable, to find the limit.
A. ?
B. 0
C. 1
D. 
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