1.

Integration by partial fraction : int(dx)/(x[(logx)^(2)+4log(x)-1)])=....

Answer»

`(1)/(2sqrt(5))LOG[(logx+2- SQRT(5))/(logx+2+sqrt(5))]+c`
`(1)/(sqrt(5))log[(logx+2- sqrt(5))/(logx+2+sqrt(5))]+c`
`(1)/(2sqrt(5))log[(logx+2+ sqrt(5))/(logx+2-sqrt(5))]+c`
`(1)/(sqrt(5))log[(logx+2+ sqrt(5))/(logx+2-sqrt(5))]+c`

Answer :A


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