If $a, b, c$ and $d$ are in HP, then $a b+b c+c d$ is equal to

JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Medium

1 of 1

Application +4 | -1

a, b, c

and

d

are in HP, then

a b+b c+c d

is equal to

View answer and explanation

Correct option: C

3 a d

Option C (

3ad

) is correct because, in a Harmonic Progression, the reciprocals are in AP, and the given expression can be derived using the AP properties.

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\frac{3}{4}