Detail solution
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Apply the quotient rule, which is:
and .
To find :
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Apply the power rule: goes to
To find :
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Let .
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The derivative of is itself.
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Then, apply the chain rule. Multiply by :
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Apply the power rule: goes to
The result of the chain rule is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
The first derivative
[src]
2 2
3 -x -x
- 2*x *e + 2*x*e
$$- 2 x^{3} e^{- x^{2}} + 2 x e^{- x^{2}}$$
The second derivative
[src]
2
/ 2 2 / 2\\ -x
2*\1 - 4*x + x *\-1 + 2*x //*e
$$2 \left(x^{2} \left(2 x^{2} - 1\right) - 4 x^{2} + 1\right) e^{- x^{2}}$$
The third derivative
[src]
2
/ 2 2 / 2\\ -x
4*x*\-6 + 6*x - x *\-3 + 2*x //*e
$$4 x \left(- x^{2} \left(2 x^{2} - 3\right) + 6 x^{2} - 6\right) e^{- x^{2}}$$