1.

int(dx)/(xsqrt(2x^2-2x+1))=

Answer»

`-logx+log|1-x+sqrt(1-2x+2x^2)|+C`
`logx+log|1-x+sqrt(1-2x+2x^2)|+c`
`logx-log|1-x+sqrt(1-2x+2x^2)|+c`
`-logx-log|1-x+sqrt(1-2x+2x^2)|+c`

ANSWER :C


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