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

1.	How many terms of the AP -5,-9/2, -4, .... will give the sum 0?
Answer» -19=n It is much better to use doubtnut app for clearing the doubts by video solution in hindi language a is -5 ,d is 1/2 ,an is 0Here we have to find nApply the formula :an=a+(n-1)dAnd you will get your answer

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