Find the coefficient of `x^4` in the expansion of `(1+ x)^n*(1- x)^n`
2,935 views · Published 11 October 2018 · 3:21 · Indexed 3 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Find the coefficient of `x^4` in the expansion of `(1+ x)^n*(1- x)^n`
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