Question

1a. Find any of the values a1, r, an, n, or sn that are missing from...

1a. Find any of the values a1, r, an, n, or sn that are missing from the geometric sequence

r= 5/2, n=4, S4=1624

the value of a1 is?

b. find the sum of the first n terms of the indicated geometric sequence with the given values

1/8 + 1/2 + 2 + (X) times (X) times (X)times + 32

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