Binomial Theorem Part 1
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Question : 43 of 100
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If the sum of the coefficients of all even powers of x in the product
( 1 + x + x 2 + . . . + x 2 n ) ( 1 − x + x 2 − x 3 + . . . + x 2 n ) is 61, then n is equal to _________.
[7-Jan-2020 Shift 1]
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