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Question
Find the second order derivative of the function.
x20
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Solution
Let, y = x20
Differentiating both sides with respect to x,
`dy/dx = d/dx x^20`
= `20x^(20 - 1)`
= 20 x19
Differentiating both sides again with respect to x,
`(d^2 y)/dx^2 = 20 d/dx x^19`
= `20 xx 19x^(19 - 1)`
= 380 x18
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