If \dfrac {1}{a},\dfrac {1}{b},\dfrac {1}{c} are the p^{th},q^{th} | Filo
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Class 11

Math

Algebra

Sequences and Series

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If are the terms respectively of an the the value of is

Correct Answer: Option(c)
Solution:
We know foe any term of an , term where first term and common difference.
,
and
and
By and
and 
or,
Adding all the equation
or, ------Proved,
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