Find the derivative.f(x) = 7
+ 
- 3
+ 4
A. f'(x) = 
x-1/2 + 
x-2/3 - 
x-3/4 + 
x-4/5
B. f'(x) = 
x1/2 + 
x2/3 - 
x3/4 + 
x4/5
C. f'(x) = 
x-1/2 + 
x-2/3 + 
x-3/4 + 
x-4/5
D. f'(x) = 
x-1/2 + 
x2/3 - 
x3/4 + 
x-4/5
Answer: A
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