The first term of the geometric program is 11 and the denominator is 2 find the sum of the first five terms.
| July 22, 2021 | education
Let’s find the sum of the first five terms of the geometric progression using the formula.
S5 = (b5 * q – b1) / (q – 1).
The fifth term of this geometric progression is b5 = 11 * 2 ^ 4 = 11 * 16 = 176.
Let’s substitute the values into the formula.
S5 = (176 * 2 – 11) / (2 – 1) = 341.
Answer: S5 = 341.
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