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f-x-2-1-x-2-x-2-f-x-

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Question Number 11151 by suci last updated on 14/Mar/17
f(x)=2^((1−x)/(2+x^2 )) f′(x)=...???
f(x)=21−x2+x2f′(x)=…???
Answered by ajfour last updated on 14/Mar/17
= 2^((1−x)/(2+x^2 )) (ln 2)[((x^2 −2x−2)/((x^2 +2)^2 ))]
=21−x2+x2(ln2)[x2−2x−2(x2+2)2]

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