Question

If Sm=Sn for some AP then prove that Sm+n=0

Answer 1

Answer:

Step-by-step explanation:

Actually you can prove it, if s = -1. So if sn=sm, then n=m.

So sm+n would be n(s+1), orsame thing m(s+1).

If s=-1, then s+1=0 and m*0 or n*0 will be 0.

You can prove it if s=-1 only. Tell me if I am wrong.

Hope this helps.

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