Math, asked by yvrao8887, 8 months ago

n(n+1)/2 proof of this formula

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Answered by Ferrari2248

0

Answer:

Proof that T(n)=n(n+1)/2 - access.eps.surrey.ac.uk

+n = n(n+1)/2. For the proof, we will count the number of dots in T(n) but, instead of summing the numbers 1, 2, 3, etc

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