0 votes 0 votes Give a formula for the coefficient of $x^{k}$ in the expansion of $\left(x^{2} − \frac{1}{x}\right)^{100},$ where $k$ is an integer. Combinatory kenneth-rosen discrete-mathematics counting binomial-theorem descriptive + – admin asked Apr 29, 2020 edited Apr 30, 2020 by Lakshman Bhaiya admin 628 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes The coefficient of x^k is given as after solving: (-1)^(100-((k+100)/3)) * 100C((k+100)/3) aanchal008 answered Apr 29, 2020 aanchal008 comment Share Follow See all 0 reply Please log in or register to add a comment.