CBSE BOARD X, asked by mohdraziq6989, 10 months ago

What is meant by explain the double answer.

Answers

Answered by sakshiagrawal719

Answer:

The A.P. starts from negative terms and its terms are increasing. ∴ All the terms after 13th term are positive. These positive terms from 14th term to 20th term when added to negative terms from 6th term to 12th term, they cancel out each other and the sum remains same.

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