Posts by Harish Chandr Tiwari
Formulas
1. Sum of first n natural numbers = n(n+1)/2
2. Sum
Formulas 1. Sum of first n natural numbers = n(n+1)/2 2. Sum of the squares of first n natural numbers = n(n+1)(2n+1)/6 3. Sum of the cubes of firs...
Formulas 1. Sum of first n natural numbers = n(n+1)/2 2. Sum of the squares of first n natural numbers = n(n+1)(2n+1)/6 3. Sum of the cubes of firs...
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