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What is the square root of (16/25)?

1 Answer

Mar 24, 2018

$\pm \frac{4}{5}$ $+-4/5$

Explanation:

$note that 16 and 25 are both perfect squares$ $"note that 16 and 25 are both perfect squares"$

$\Rightarrow \sqrt{\frac{16}{25}} = \pm \frac{\sqrt{16}}{\sqrt{25}} \leftarrow note plus or minus$ $rArrsqrt(16/25)=+-sqrt16/sqrt25larrcolor(blue)"note plus or minus"$

$\Rightarrow \sqrt{\frac{16}{25}} = \pm \frac{4}{5}$ $rArrsqrt(16/25)=+-4/5$

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