Question 179(iii)

Express each of the following in exponential form.
$\frac{400}{3969}$

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Solution

Given, $\frac{400}{3969}$
Since, $(20) \times (20) = 400 = (20)^{2} a n d 63 \times 63 = 3969 = (63)^{2}$
Exponential form of $\frac{400}{3969} = - \frac{(20)^{2}}{(63)^{2}} = {(\frac{20}{63})}^{2}$

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