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a(m+n)+a(m-n)=2am (Arithmetic progression)

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a(m+n)+a(m-n)=2am (Arithmetic progression)
  • 1 answers

Rudransh Raj 4 years, 7 months ago

——> a(m+n)+a(m-n) =2am ——> am+an+am-an=2am ——> am+am+an-an=2am ——> 2am=2am ——> L.H.S=R.H.S
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