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Let K be the sum of the coefficients of the odd powers of x in the expansion of (1 + x ) 99 . Let a be the middle term in the expansion of 200 2 1 2 . If n m 2 a K C 99 200 , where m and n are odd numbers, then the ordered pair ( , n ) is equal to
- (51, 101)
- (51, 99)
- (50, 101)
- (50, 51)
Correct answer: (50, 101)
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