Asked by Gail Ahmad
                Using the Summation formula for this sequence what is S12 for 4+8+16+...
I don’t know how to do this at all
Thanks in advance !
            
        I don’t know how to do this at all
Thanks in advance !
Answers
                    Answered by
            Damon
            
    geometric sequence
a = 4
r = 2
https://www.mathsisfun.com/algebra/sequences-sums-geometric.html
    
a = 4
r = 2
https://www.mathsisfun.com/algebra/sequences-sums-geometric.html
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