If S_{n} is the sum of the first n terms of the series 1^{2}+2 \times 2^{2}+3^{2}+2 \times 4^{2}+5^{2}+2 \times 6^{2}+. . . \infty, then, when n is even S_{n}=

TS EAMCET 10-Sep-2020 Shift 2 Solved Paper

Section: Mathematics

Question : 3 of 160

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If Sn is the sum of the first n terms of the series 12+2×22+32+2×42+52+2×62+...∞, then, when n is even Sn=

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