Find xif 4; 4+2×;4+4× are in Geometric sequences​

Given:

are in geometric sequences​.

To find:

The value of x.

Solution:

If a, b, c are in geometric sequences​, then

          ...(i)

It is given that are in geometric sequences​. By using (i), we get

On further simplification, we get

Therefore, the value of x is 0.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: