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Find the 15th term of an Ap 12, 15, 18 etc a=12 d=15-12=3 n = 15 in this why we put n= 15?

Posted by Vishnupriya Ravi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Paridhi Sankhla 5 years, 2 months ago

We put n = 15 because the formula is a+(n-1)*d and here n refers to the No. Of terms

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CBSE > Class 10 > Mathematics