Question

Mathod of induction 1^2+2^2+3^2...+n^2=n(n+1)(2n+1)/6
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Answer 1

Answer:

Step-by-step explanation:

by using first step..

put n = 1

(1)². =. (1+1)(2×1+1)/6

1. =. ( 2×3)/6===1

hence n=1 is true

let be put n=k