cbsetoday.com...Find the sum of the following series upto n terms : 13 2 13 + 23 + 3 2n Show that...
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cbsetoday.com...Find the sum of the following series upto n terms : 13 2 13 + 23 + 3 2n Show that the coefficient of the middle term in the expansion of (1 + x) is equal 2n—1 to
