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laila [671]
3 years ago
9

What is the sum of the infinite geometric series?

Mathematics
2 answers:
grandymaker [24]3 years ago
8 0
<h2>Answer:</h2>

The sum of the  infinite geometric series is:

                                 -288

<h2>Step-by-step explanation:</h2>

We know that the sum of the infinite geometric series:

\sum_{n=1}^{\infty} ar^{n-1}

is given by the formula:

Sum=\dfrac{a}{1-r}

The series is given by:

     \sum_{n=1}^{\infty} (-144)\cdot (\dfrac{1}{2})^{n-1}

By looking at the series we observe that the first term of the series is:

            a=-144

and the common ratio of the series is:

r=\dfrac{1}{2}

Hence, the sum of the series is:

Sum=\dfrac{-144}{1-\dfrac{1}{2}}\\\\Sum=\dfrac{-144}{\dfrac{1}{2}}\\\\Sum=-144\times 2\\\\Sum=-288

Alexandra [31]3 years ago
3 0

Answer:

-288

Step-by-step explanation:

n=1/2 divided by -144. You then just plug that number which is .00347 into n in the equation and use a scientific calculator to find the answer.

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