0 votes 0 votes x31⋅(1−x16)⋅(1−x15)⋅(1−x26)⋅$\frac{1}{(1-x)^{3}}$ find the coefficient of x52 ?? papesh asked Dec 9, 2016 papesh 381 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Prabhanjan_1 commented Dec 9, 2016 reply Follow Share 1680 ?? 0 votes 0 votes air1 commented Dec 10, 2016 reply Follow Share Do you understand the second solution here http://math.stackexchange.com/questions/305328/finding-coefficient-of-generating-function Its the same problem. 0 votes 0 votes papesh commented Dec 10, 2016 reply Follow Share I know the ans...plz give complete solution ... 0 votes 0 votes Please log in or register to add a comment.
Best answer 3 votes 3 votes aa ans is 204 https://gateoverflow.in//85604/generalized-permutation-and-combination( see the note for more clearification ) minal answered Dec 10, 2016 selected Dec 10, 2016 by papesh minal comment Share Follow See all 3 Comments See all 3 3 Comments reply papesh commented Dec 10, 2016 reply Follow Share Thanks! 1 votes 1 votes Akriti sood commented Dec 11, 2016 reply Follow Share @sonam,and one more thing,as far as i know,genral term according to binomial formula in (1-x)n = n+r-1C r but here (1-x)n is in denominator..so why have u not taken minus?? please help me :-( 0 votes 0 votes minal commented Dec 12, 2016 reply Follow Share there is table given in chapter 6.4 page 429(rosen book) ..refer from there 0 votes 0 votes Please log in or register to add a comment.