1.

The sum of first ten terms of the A.P 2, 5, 8, 11….is A. 210 B. 155 C. -115 D. 115​

Answer»

Step-by-step EXPLANATION:

the terms of the AP 2, 5, ,8, 11

a=2 and d= 3

the 10th term

using arthimatic progression

an= a+(n-1)d

= 2+( 10-1) 3

= 2 +9 (3)

=2+27

=29



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