y'=3((1+x²)/(1-x))²·(2x(1-x)+(1+x²)) /(1-x)²=3((1+x²)/(1-x))²·(-x²+2x+1)/(1-x)²=
3(1+x²)²(-x²+2x+1) / (1-x)³.
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
y'=3((1+x²)/(1-x))²·(2x(1-x)+(1+x²)) /(1-x)²=3((1+x²)/(1-x))²·(-x²+2x+1)/(1-x)²=
3(1+x²)²(-x²+2x+1) / (1-x)³.