WAEC 2025
Find (101\(_2\))\(^2\), expressing the answer in base 2.
- A11101
- B10101
- C10010
- D11001
Explanation
Convert 101₂ to base 10 to get 5. Squaring 5 gives 25. Converting 25 back to base 2 gives 11001₂ (25 = 16 + 8 + 1 = 2⁴ + 2³ + 2⁰).
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