Math, asked by Anonymous, 5 months ago

The sums of first n terms of three arithmetic progressions are S1, S2 and S3 respectively. The first term of each A.P. is 1 and their common differences are 1,2 and 3 respectively. Prove that S2 + S3 = 2Sr
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Answered by Anonymous
2

Hence Proved!!!!

Thanks for asking !!!!

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