The coefficient of `x^n` in `(1+9x+27x^2+27x^3)` is
1,883 views · Published 13 October 2018 · 1:45 · Indexed 30 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW The coefficient of `x^n` in `(1+9x+27x^2+27x^3)` is
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