UPSC NDA II 2015 Mathematics Solved Paper
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For the next three (3) items that follow :
Consider the expansion of( 1 + x ) 2 n + 1
Consider the expansion of
[NDA II 2015]
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Question : 31 of 120
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If the coefficients of x r and x r + 1 are equal in the expansion, then r is equal to
[NDA II 2015]
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