If \displaystyle a_{1},a_{2},...a_{n} be an A.P. of +ive terms, th | Filo
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Class 11

Math

Algebra

Sequences and Series

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If  be an A.P. of +ive terms, then  where d is common difference of A.P. If you think this is true write otherwise write ?

  1. 1
Correct Answer: Option(a)
Solution:
or 

Thus answer is .
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