Objectives Quiz: Geometric Series 6:Sequences and Series 4. Use the formula to evaluate the series 2 – 10 + 50 – 250 + a 6 Sn = a1(1 - ) 1-r In the formula for a finite series, 2. is the first term, r is the common ratio, and n is the number of terms. 15,624 -5208 5208​

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

the answer for your question is

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6