Q. Find the sum of the infinite geometric series.−6−29−827−3281+Write your answer as an integer or a fraction in simplest form.______
Identify Terms: 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=−6−9/2=43
Convergence Check: Determine if the series is convergent.A geometric series converges if the absolute value of the common ratio ∣r∣ is less than 1.In this case, ∣43∣=0.75, which is less than 1.Therefore, the series is convergent.
Infinite Series Formula: Use the formula for the sum of an infinite geometric series.The sum S of an infinite geometric series is given by the formula S=1−ra, where a is the first term and r is the common ratio.
Calculate Sum: Substitute the values of a and r into the formula to find the sum.S=1−(43)−6S=41−6S=(−6)×(14)S=−24
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