JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

1 of 1

Application +4 | -1

a_1, a_2, a_3, \ldots ., a_{n+1}

are in A.P., then

\frac{1}{a_1 a_2}+\frac{1}{a_2 a_3}+\ldots \cdot \frac{1}{a_n a_{n+1}}

, is

View answer and explanation

Correct option: D

\frac{n}{a_1 a_{n+1}}

Option D (

\frac{n}{a_1 a_{n+1}}

) is correct because it simplifies the given expression using the properties of arithmetic progressions.

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