If in the expansion of (1-x)^(2n-1), the...

If in the expansion of `(1-x)^(2n-1)`, the coefficient of `x^r` is denoted by `a_r` then `a_(r-1)+a_(2n-r)=`

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DIPTI PUBLICATION ( AP EAMET)-BINOMIAL THEOREM-EXERCISE 1A (BINOMIAL THEOREM WITH INTEGRAL INDEX)

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