(1-x 2 )(1-y)dx=xy(1+y)dy



1 Answers

Badiuddin askIITians.ismu Expert
148 Points
13 years ago

Dear upendra


seperate term

(1-x2)/x dx=y(1+y)/(1-y)  dy

(1/x  -x) dx={-(y+2)  +2/(1-y) }dy

now integrate

lnx -x2/2  =-(y+2)2/2  +-2ln|1-y|   +c

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