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Question
Find the second order derivative of the function.
`x^20`
Solution
Let, y = x20
Differentiating both sides with respect to x,
`dy/dx = d/dx x^20`
`= 20x^(20 - 1)`
`= 20x^19`
Differentiating both sides again with respect to x,
`(d^2 y)/dx^2 = 20 d/dx x^19`
`= 20 xx 19x^(19 - 1)`
`= 380 x^18`
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