Zeeshan K.

asked • 10/15/22

At which points does the graph of the f(x) have horizontal tangent line?

(2x^2-2x-1)/(x^4+1)



1 Expert Answer

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Doug C. answered • 10/15/22

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Graph of function and its derivative (and horizontal tangent lines):

desmos.com/calculator/lnhwwoaqkt


Desmos for Newton's Method (finding the roots of the first derivative)

desmos.com/calculator/vfyzxrsych


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Zeeshan K.

That was a whole new concept to me but yeah it helped a lot i'll try to learn that. Thanks a lot for your effort sir. That was really kind of you.
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10/15/22

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