For what value of r the coefficient of (r-1)th (2r+3)rd terms in the expansion of (1+x)^15 are equal - Maths - Binomial Theorem

Question

For what value of r the coefficient of (r-1)th & (2r+3)rd terms
in the expansion of (1+x)^15 are equal?

Rajitha Singh · Answer

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For what value of r the coefficient of (r-1)th & (2r+3)rd terms in the expansion of (1+x)^15 are equal?