Math, asked by echlipse82, 1 year ago

the sum of first 20 terms of an AP is 400 and sum of first 40 terms of an AP is 1600. Find the sum of its first 10 terms.

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Answered by adya18

8

HEY!!! HERE IS YOUR ANSWER...

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Answered by Merlin123

6

Hi friend...

Please refer to the attachment

I think my answer is correct✓

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