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How many terms of the AP …

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How many terms of the AP -5,-9/2, -4, .... will give the sum 0?

Posted by Yash Mahajan 2 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Kunal Tanu 2 years, 5 months ago

-19=n

Yashraj Saini 2 years, 6 months ago

It is much better to use doubtnut app for clearing the doubts by video solution in hindi language

Yashraj Saini 2 years, 6 months ago

a is -5 ,d is 1/2 ,an is 0 Here we have to find n Apply the formula : an=a+(n-1)d And you will get your answer

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