definite integrals: which integral equals f(g(4))-f(g(2))?

Math wiz ya rite 09

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If f and g are continuously differentiable functions for all real numbers, which of the following definite integrals is equal to f(g(4))-f(g(2))?


\(\displaystyle \int_{2}^{4}{f'(g(x))}}\ dx\)
\(\displaystyle \int_{2}^{4}{f(g(x))f'(x)}}\ dx\)
\(\displaystyle \int_{2}^{4}{f(g(x))g'(x)}}\ dx\)
\(\displaystyle \int_{2}^{4}{f'(g(x))g'(x)}}\ dx\)
\(\displaystyle \int_{2}^{4}{f(g'(x))g'(x)}}\ dx\)
 
For the definite integral to evaluate as f(g(4)) - f(g(2)), in what form must the integral be, before evaluation at x = 4 and x = 2?

Which integrand is the derivative of this form? :wink:

Eliz.
 
I don't see any A,B, etc.

How come you are not sure?
 
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