Question #c2852

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ASAP
Oct 10, 2017

#dy/dx=20x^3+12x-1-1/x^2#

Explanation:

#y=5x^4+6x^2-x+1/x#

We will apply chain rule on RHS.

We know that when #y=x^n# then #dy/dx=nx^(n-1)#

#d/dxy=d/dx(5x^4+6x^2-x+x^(-1))#

#dy/dx=20x^3d/dxx+12xd/dxx-1+(-1)x^(-2)#

#dy/dx=20x^3+12x-1-1/x^2#

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