Homework) read the following mathematical steps of finding sum of series. Σ 2n = 1+2+4+8+16+ .... 'n=0 Let S = 1+ 2+4+8+16+ …... a S-1 = 2 + 4 + 8 + 16 + ... Multiply series a by 2 2S2+4+8+16+.... S-1=2+4+8+16+.... subtract S+1=0 S = -1 I What is the wrong step in this mathematical procedure? ■ Why this wrong procedure gives this answer S =-1?

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A: We can solve as follow.

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Q: Homework) read the following mathematical steps of finding sum of series. ∞ Σ 2n = 1+2+4+8+16+ ...…

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