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How can i calculate (d2y/dx2) of any function y=f(x)

How can i calculate (d2y/dx2) of any function y=f(x)

Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
148 Points
14 years ago

Dear Chandrakesh

 meaning of d2y/dx2  is

d2y/dx2  = d/dx (dy/dx)

 

for example we have a function  y =  x4 + 20x2

now we need to find out d2y/dx2 

first find out dy/dx   

    so dy/dx = 4x3 + 40x

now for d2y/dx2  differentiate the dy/dx again

     so  d2y/dx2 = d/dx ( 4x3 + 40x)

                     = 12x2 +40

 

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