f-x-e-x-1-x-2-and-the-domain-D-f-of-f-is-chosen-appropriately-find-d-dx-f-x-at-any-point-x-in-D-f-

Question Number 4486 by Rasheed Soomro last updated on 31/Jan/16

f (x) = e^{x} (1 - x^{2}) a n d t h e d o m a i n D (f) o f f

i s c h o s e n a p p r o p r i a t e l y, f i n d \frac{d}{d x} f (x) a t

a n y p o i n t x i n D (f) .

Answered by Yozzii last updated on 31/Jan/16

\frac{d f (x)}{d x} = e^{x} (1 - x^{2}) + e^{x} (- 2 x) = e^{x} (1 - 2 x - x^{2})

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