How would I find the sum of 3^r from r=1 to r=n?
I honestly have no workings because I don't know how to approach this since I can't split it into 3*(sum[1^r])
Thank you for your help.
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How would I find the sum of 3^r from r=1 to r=n?
I honestly have no workings because I don't know how to approach this since I can't split it into 3*(sum[1^r])
Thank you for your help.
Quote:
Originally Posted by Mukilab
It's a geometric series withQuote:
Originally Posted by Mukilab
and common ratio
.
The sum of a finite geometric series can be evaluated using.