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If a² + b² = 50 and a = 5 then b equals?
  1. 5
  2. 6
  3. 7
  4. None of these
Explanation

a² + b² = 50  

5² + b² = 50  

25 + b² = 50  

b² = 25  

b = ±5  


Last verified on 08-05-2026

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