Hence, n 7 and r 3.If the coefficients of x x andare in AP, prove that – InterviewSolution

1.	Hence, n 7 and r 3.If the coefficients of x x andare in AP, prove thatxr +1 İn the binomial expansion of(1+x)n2-n(4r+1)+4r2-2 0.
Answer» Kindly replace the a by X.

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