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gogolik [260]
3 years ago
5

What is the series in Expanded Form?

Mathematics
1 answer:
tangare [24]3 years ago
7 0

Answer:

∴ ∑₁⁸i = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8

Step-by-step explanation:

Given:

To Find:

∑₁⁸i =?

Solution:

Σ   This symbol called Sigma means "summation up"

∴ ∑ n mean sum for all n

But if ∑₁³n means  Sum for n=1 , 2 ,and 3 ADD

∴ ∑₁³n = 1 + 2 + 3

∴ ∑₁⁸i = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8

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Answer:

Antoinette's error

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Step-by-step explanation:

We are given the following information in the question:

Antoinette solves the linear equation

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Antoinette made mistake in step 1 that is she did not distributed correctly.

If she would have distributed correctly, then she would have got the following solution:

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3 years ago
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CaHeK987 [17]
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