Mathematical Induction: 1 + 1/(1+2) + 1/(1+2+3) ... + 1/(1+2+3...n) = 2n/(n+1)

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Mathematical Induction: Example 2

Prove 1 + 1/(1+2) + 1/(1+2+3) + 1/(1+2+3+4) ... + 1/(1+2+3...n) = 2n/(n+1)
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Thank you so much sir this helped me alot

Sajausz
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Sir one doubt please .. at 5:42 how was k^2 +2k + 1 became 2 (k+1)^2 then

Sajausz
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Sir🙋‍♀️i didn't understand from where did understand 2/(k+1)(k+2) came from?. Plz rply sir

riyarobert
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i didnt understand frm where dad 2k/k+1came frm

stiallybortiew