Question

The 3rd term of a Gp is 54, the 7th the reciprocal of 3rd term. Find the 5th term

Answer 1

Step-by-step explanation:

$a{r}^{2} \times a{r}^{6} = 54 \times \frac{1}{54} = 1 \\ {a}^{2} {r}^{8} = 1 \\ \sqrt{ {a}^{2} {r}^{8}} = \sqrt{1} \\ a {r}^{4} = 1 \\ 5th \: term \: is \: 1$

Answer 2

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