if the first term of an a.p is 1 and common difference is 3,then​

1 thought on “if the first term of an a.p is 1 and common difference is 3,then​”

1. Answer:

   Correct option is

   D

   −34

   It is given that, First term, a=−1, Common Difference, d=−3, and Number of Terms, n=12

   ∴nth term of any AP is given by:

   Tn=a+(n−1)d

   Hence,

   T12=(−1)+(12−1)(−3)=−34

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