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If f(1-x)/(1+x)=x and g(x) = intf(x)dx t...

If `f(1-x)/(1+x)=x` and `g(x) = intf(x)dx` then

A

g(x) is continous in domain

B

g(x) is discontinous at two points in its domain

C

`lim_(xto infty)g^(')=-1`

D

`intg(x)dx=-x^(2)/2+(2x+1)lambdan(1+x)/e+C`

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