1.

2,7, 12....are in Ap find the sum of 12 terms​

Answer»

HERE IS YOUR ANSWER.

A= 2,D=5

Sn=n/2 (2A+(n-1)d)

=12/2 (2×2+11×5)

=6 (4+55)

=6 (59)

=354.

MARK ME BRAINLIEST



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