1.

if f(x)=(x^(3)-3x^(2)+3x-x^(2)l n(e^((1)/(x^(2)))(x^(2)-x+2)))/(l n(x^(2)-x+2)) then f^('')(1) is equal to

Answer»

`(2)/((l N2)^(2))`
`-2`
`(-2)/((l n2)^(2))`
`(1-2l n2)/((l n2)^(4))`

SOLUTION :`F(x) (x^(3)-3x^(2)+3x-1-x^(2)l N (x^(2)-x+2))/(l n (x^(2)-x+2))`
`=((x-1)^(3))/(ln(x^92)-x+2)`
`thereforef^('')(1)=-2`


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