Math, asked by somnathpramoda, 1 month ago

The 14th term of an AP is twice its 9th term. If its 6th term is -8, then find the sum

of its first 20 terms.

Answers

Answered by Anonymous

11

Answer:

give that - 14th term is an ap

twice of the 8th term and 6th term - 8

the sum of its 20th term is -- 340 .

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