Let `(1 + x + x^2)^n=sum_(r=0)^(2n) a_r * x^r` , where n is a positive integer, if we have
63 views · Published 13 October 2018 · 1:36 · Indexed 8 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Let `(1 + x + x^2)^n=sum_(r=0)^(2n) a_r * x^r` , where n is a positive integer, if we have `a_0+a_1 + a_2 +........+ a_(n-1) = (3^n-a_n)(2k)`, then the value of k isn 2n
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