Asked by Maria kate andrea bultron
                Given a1=10 and r=½, find a8?
 
            
            
        Answers
                    Answered by
            oobleck
            
    as usual,
a8 = ar^7 = 10/2^7 = 10/128 = 5/64
    
a8 = ar^7 = 10/2^7 = 10/128 = 5/64
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