1.

Find the sum to n terms of the sequence 1,3,5....(A) [n-1]^2(B) [n+1]^2 (C) [2n-1]^2(D) n^2

Answer»

Hi Mate!!!

SN = N / 2 [ 2a + (n-1) d]

a = 1. d = 3-1 = 2

Sn = n /2 [ 2 + 2n - 2 ]

Sn = 2n² / 2

Sn = n²

Have a nice TIME



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