MCQ
If $\sqrt{2}=1.414$, then $\frac{3}{\sqrt{2}}$ is equal to
- A2.221
- B2.122
- ✓2.121
- D2.112
✓
Answer
Correct option: C.
2.121
(c)
A rationalising factor of $\sqrt{2}$ is $\sqrt{2}$.
$\therefore$ $ \frac{3}{\sqrt{2}}=\frac{3 \sqrt{2}}{\sqrt{2} \times \sqrt{2}}=\frac{3}{2} \sqrt{2}=(1.5) \sqrt{2}=1.5 \times 1.414=2.121 $
A rationalising factor of $\sqrt{2}$ is $\sqrt{2}$.
$\therefore$ $ \frac{3}{\sqrt{2}}=\frac{3 \sqrt{2}}{\sqrt{2} \times \sqrt{2}}=\frac{3}{2} \sqrt{2}=(1.5) \sqrt{2}=1.5 \times 1.414=2.121 $
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