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Question

Given h(x)=f(x)g(x). If h(x)0,f(x)g(x).


A

True

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B

False

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Solution

The correct option is B

False


If h’(x) 0, then we can say f’(x) - g’(x) 0

This would mean f’(x) g’(x)

We can’t say f(x) g(x) from this. For example, if f(x) = 1 and g(x) = 2, we get h(x) = 1-2 = -1

Now, h’(x) = 0. So the given conditions are satisfied.

But we can’t say f(x) g(x) from this.


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