Question 1

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waecmaths question: 

Evaluate  ${{({{111}_{two}})}^{2}}$ and leave your answer in base 2

Option A: 

111001two

Option B: 

110001two

Option C: 

101001two

Option D: 

10010two

waecmaths solution: 

$\begin{align}  & 111 \\ & \text{         }\times \underline{111} \\ & 111 \\ & \text{          }111 \\ & \text{      }\underline{\text{ +}111\text{   }} \\ & \underline{\text{   }{{110001}_{2}}\text{   }} \\\end{align}$

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