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Y = ex3 -

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Question

y = `e^(x3)`

Options

  • `3x^2e^(x3)`

  • `e^(x2)`

  • `e^(x3)`

  • `x^(ex)`

MCQ

Solution

`3x^2e^(x3)`

Explanation:

`y = e^(x3)`, put `x^3 = t`

⇒ `y = e^t` and `t = x^3`

⇒ `(dy)/(dt) = e^t, (dt)/(dx) = 3x^2`

⇒ `(dy)/(dx) = (dy)/(dt) xx (dt)/(dx) = e^t xx 3x^2 = 3x^2e^(x3)`.

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