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Sum of first n term

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Sum of first n term

Posted by Faizan Ayyub 5 years, 5 months ago

CBSE > Class 11 > Mathematics

2 answers

Chesta Pawan Manchanda 5 years, 5 months ago

I think aditya is wrong and the correct formula is sn =n/2(2a+(n-1)d)

2Thank You

Aditya Saxena 5 years, 5 months ago

Sn=2/n(a+(n-1)d) Sn=2/n(a+l) L=nth term

1Thank You

ANSWER

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CBSE > Class 11 > Mathematics