1 votes 1 votes equations are $\left ( \frac{1-x^{11}}{1-x} \right ).\left ( \frac{1-x^{6}}{1-x} \right )\left ( \frac{1-x^{4}}{1-x} \right )$ =(1-x11)(1-x6)(1-x4)(1-x)-3 right? Combinatory engineering-mathematics + – srestha asked Jan 24, 2018 srestha 284 views answer comment Share Follow See 1 comment See all 1 1 comment reply hs_yadav commented Jan 24, 2018 reply Follow Share yes sure....correct x1+x2+x3=10 and 0=<x1<=10 0=<x2<=5 0=<x3<=3 0 votes 0 votes Please log in or register to add a comment.