To tog 1og4 putting 1 - x = y?, -3 x dx = 2y dy, we get get 2 1 1 dx =- log +c xy1-x yy y+1 1 1-x-1+c log +c 3 1-x3+1 a = 3

TO Tog 1Og4 Putting 1 - x = y?, -3 x dx = 2y dy, we get get 2 1 1 dx =- log +C xy1-x yy y+1 1 1-x-1+C log +C 3 1-x3+1 a = 3 .I am stuck with these basics, I didn't understand the substitution of y