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Find Relative maxima and minima. y= x^3+3x^2-9x-5

Find Relative maxima and minima.

y= x^3+3x^2-9x-5

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Answer #1

To find stationary point of any function y=f(x)

We put f'(x)=0

Then we get stationary points.

If f''(x) is positive at that stationary point then f(x) has minima.

And if f''(x) is negative at that stationary point then f(x) has maxima .

If you satisfied with this answer please give positive ratings... plz.

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