English, asked by meghanaik500, 10 months ago

find the sum of series 2+7+12... 25 term

Answers

Answered by mohanaprakash28

0

Explanation:

by using sn=[2a+(n-1)d] yourself find the answer

it is easy......

TRY YOURSELF

Answered by payal1020876

1

Answer:Clearly, the given sequence is an AP with first term a=2, common difference d=5 and n=10.

Now,

S 10 = 210[2a+(10−1)d]

=5[2×2+9×5]

=245

Explanation:

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