.Find the coefficient of x ^32 and x ^−17 in the expansion of (x ^4 − 1/ x 3 ) ^15 .
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https://www.meritnation.com/ask-answer/question/find-the-coefficient-of-x-17-on-the-expansion-of-x4-1-x3-15/binomial-theorem/6382656
Here is a link to a similar query
https://www.meritnation.com/ask-answer/question/find-the-coefficient-of-x-17-on-the-expansion-of-x4-1-x3-15/binomial-theorem/6382656