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What is the sum of first 6 terms​

What is the sum of first 6 terms​-example-1

1 Answer

5 votes

Answer:

182

Explanation:

Sum = a(r^n -1) ÷ r - 1

1(-3^6 - 1) ÷ -3 -1

= 182

r = t2 ÷ t1 * since they stated that it is geometric

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