Math, asked by aryankamble60, 1 year ago

In for an A.P. t8=36 find S15

Answers

Answered by jainakshat092

8

t +7d =36
S15=15÷2{2t+14d}
=15÷2{2(t+7d)}
=15÷2(2×36)
=15×36
=540

hope!!!this answer will help you

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