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Simplify: (11\(_{two}\))\(^2\)

Mathematics
WAEC 2021

Simplify: (11\(_{two}\))\(^2\)

  • A. 1001\(_2\)
  • B. 1101\(_2\)
  • C. 101\(_2\)
  • D. 10001\(_2\)
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Correct Answer: Option A
Explanation

(11\(_{two}\))\(^2\) = (11\(_2\) \(\times\) (11\(_2\))

= \({1 \times 2^1 + 1 \times 2^0} \times ({1 \times 2^1 + 1 \times 2^0})\)   

= \({1 \times 2 + 1 \times 1} \times ({1 \times 2 + 1 \times 1})\)

= \({2 + 1} \times ({2 + 1})\)

= 3 \(\times\) 3 

= 9\(_{10}\) or

1001\(_2\) from  

2
2 4 r1
2 2 r0
2 1 r0
  0 r1

 

 


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JAMB CBT Mobile App 2025 - Free Download
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