Which of the following is the radical expression?

\sqrt{2}

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\sqrt{4}

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\sqrt{5}

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\sqrt{9}

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Solution

The correct options are
A $\sqrt{2}$
C $\sqrt{5}$
In a surd ' $\sqrt{}$ ' symbol is called radical.
Here $\sqrt{2}$ and $\sqrt{5}$ are radical expression.
$\sqrt{4}$ = 2 and $\sqrt{9}$ = 3 which is a rational number, hence they are not surds
So, $\sqrt{2}$ and $\sqrt{5}$ are radical expression.

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Similar questions

Simplify the following expression and choose the correct answer:

$\frac{0 \times (\frac{5}{9} \times \frac{2}{3}) + \frac{5}{6} \times 9 \times 0}{(\frac{4}{5} + \frac{3}{5} + \frac{1}{2})}$

The value of following expression when x = 3, $x^{2}$ − 5x + 4 gives $(- 3)^{2}$ − 5 (−3) + 4 = 9 + 15 + 4 = 28

The value of following expression when $x = - 3$ ,

$x^{2}$ − 5x + 4 gives $(- 3)^{2}$ − 5 (−3) + 4 = 9 + 15 + 4 = 28

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