$\sqrt{45}$ in simplest form is

$\sqrt{45}$ in simplest form is
  1. $3\sqrt{5}$
  2. $5\sqrt{3}$
  3. $9\sqrt{5}$
  4. $\sqrt{45}$

Solution

$\sqrt{45} = \sqrt{9 \cdot 5} = 3\sqrt{5}$.

Asked in: MH-SSC-9

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