Jambmaths question:
Simplify $\frac{\sqrt{98}-\sqrt{50}}{\sqrt{32}}$
Option A:
3
Option B:
1
Option C:
$\frac{1}{2}$
Option D:
$\frac{1}{4}$
Jamb Maths Solution:
$\begin{align} & \frac{\sqrt{98}-\sqrt{50}}{\sqrt{32}}=\frac{\sqrt{49\times 2}-\sqrt{25\times 2}}{\sqrt{16\times 2}} \\ & =\frac{7\sqrt{2}-5\sqrt{2}}{4\sqrt{2}} \\ & =\frac{2\sqrt{2}}{4\sqrt{2}}=\frac{1}{2} \end{align}$
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