Quiz Discussion

The value of $\sqrt {0.01} { \text{ + }} \sqrt {0.81} { \text{ + }} \sqrt {1.21} { \text{ + }} \sqrt {0.0009}$  is = ?

• 1] 2.03
• 2] 2.1
• 3] 2.11
• 4] 2.13

If $\sqrt 2 = 1.414{ \text{,}}$ the square root of $\frac{{\sqrt 2 - 1}}{{\sqrt 2 + 1}}$  is nearest to = ?

• 1] 0.172
• 2] 0.414
• 3] 0.586
• 4] 1.414

If $a = \frac{{\sqrt 3 }}{2}{ \text{}}$   then $\sqrt {1 + a} + \sqrt {1 - a} = ?$

• 1]

  $\left( {2 - \sqrt 3 } \right)$

• 2]

  $\left( {2 + \sqrt 3 } \right)$

• 3]

  $\left( {\frac{{\sqrt 3 }}{2}} \right)$

• 4]

  $\sqrt 3$

$1728 \div \root 3 \of {262144} \times ? - 288$      = 4491

• 1] 148
• 2] 156
• 3] 173
• 4] 177

The value of $\sqrt {0.000441}$  is = ?

• 1] 0.00021
• 2] 0.0021
• 3] 0.021
• 4] 0.21