JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

1 of 1

Application +4 | -1

Let there be a G.P. whose first term is

a

and the common ratio is

r

. If

A

and

H

are the arithmetic mean and the harmonic mean respectively for the first

n

terms of the G.P. Then,

A H

is equal to

View answer and explanation

Correct option: A

a^2 r^{n-1}

The correct answer is A (

a^2 r^{n-1}

) because it is the product of the arithmetic mean (A) and harmonic mean (H) of the first n terms of the given geometric progression.

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