SOLUTION: use mathematical induction to prove the summation of  i=1 4i-1=n(2n+1)

Question 935544: use mathematical induction to prove the summation of 
i=1
4i-1=n(2n+1)
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
You probably meant

For , what we need to prove is

is the "sum" of just the first term, .
has the same value.

After that we have to prove that
if is true for ,
it must be true for .
For ,
we say it is true that , so
.
Then, we must prove that it is true for , meaning that

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SOLUTION: use mathematical induction to prove the summation of &#57350; i=1 4i-1=n(2n+1)

SOLUTION: use mathematical induction to prove the summation of  i=1 4i-1=n(2n+1)