Q. Find the sum of the infinite geometric series.−6−23−83−323+Write your answer as an integer or a fraction in simplest form.______
Identify first term and common ratio: First, we need to identify the first term a and the common ratio r of the geometric series.The first term a is −6.To find the common ratio r, we divide the second term by the first term: r=−6−3/2=41.
Calculate common ratio: Now that we have the first term and the common ratio, we can use the formula for the sum of an infinite geometric series, which is S=(1−r)a, provided that |r| < 1. In this case, |\frac{1}{4}| < 1, so we can use the formula.
Use formula for sum: Let's plug the values into the formula: S=1−41−6.
Plug values into formula: Now we calculate the denominator: 1−41=44−41=43.
Calculate denominator: Next, we calculate the sum: S=(−6)/(43). To divide by a fraction, we multiply by its reciprocal: S=(−6)×(34).
Calculate sum: Now we perform the multiplication: S=3−24.
Simplify fraction: Finally, we simplify the fraction: S=−8.
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