Let be differentiable functions with the following properties: I. II. If A. f'(x) B. 0 C. 1 d. g(x) I am confused about where to begin this problem. Any ideas? Thanks
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Originally Posted by r2d2 Let be differentiable functions with the following properties: I. II. If A. f'(x) B. 0 C. 1 d. g(x) I am confused about where to begin this problem. Any ideas? Thanks h'(x) = f(x)g'(x) + g(x)f'(x) = f(x)g'(x) what does that say about the product g(x)f'(x) ? further, since g(x) > 0 foa all x, what does that say about f'(x) ? finally, what does that say about f(x) ?
so if g(x)f'(x) = 0, and where g(x) cannot be 0, then than means f(x) must be a constant, so the answer would be 1. Would that be correct?
Originally Posted by r2d2 so if g(x)f'(x) = 0, and where g(x) cannot be 0, then than means f(x) must be a constant, so the answer would be 1. Would that be correct?
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