Evaluating each geometric series described. Find the sum A1=-3, An=-196608, r=4 Answer choices: A) 1 B)-285886 C)-262143 D)-339855 S=

(C)-262143

Step-by-step explanation:

For a geometric series, the nth term

where a= first term, r=common ratio.

If , r=4 and

then from

-196608=-3 X

Since the bases are the same, the powers are equal

n-1=8

n=8+1=9

Therefore the Sum of the geometric series

(This form is used because r>1)

5 pm

step-by-step explanation:

step-by-step explanation:

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