Mathematics, 24.06.2019 06:10, vanessa2002584
Prove by mathematical induction that 1^2 + 2^2 ++k^2= k(k+1)(2k+1)/6
Answers: 1
we have
: if we add the k+1-th term on both sides, we have
is exactly the formula 
if you substitute k with k+1
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Prove by mathematical induction that 1^2 + 2^2 ++k^2= k(k+1)(2k+1)/6...
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