Question

# Let be A.P and be in H.P If and the

- 2/3
- 4
- 9
- 6

Hint:

### The **harmonic progression** is formed by taking the reciprocal of the terms of the arithmetic progression. If the given terms of the arithmetic progression are a, a + d, a + 2d, a + 3d, ...., then the terms of the harmonic progression (or harmonic sequence) are 1/a, 1/(a + d), 1/(a + 2d), 1/(a + 3d), 1/(a + 4d),...... Here a is the first term and d is a common difference. Both a and d have non-zero values.

## The correct answer is: 6

### Given : are in AP and are in HP

Also : and

To Find :

We know that in Harmonic Progression the terms of the harmonic progression (or harmonic sequence) are the reciprocal of the terms of the arithmetic progression.

If, are in HP

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