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If a² + b² = 170 and a = 1 then b equals?
  1. 11
  2. 12
  3. 13
  4. None of these
Explanation

Put a = 1 into a² + b² = 170.

1² + b² = 170  

1 + b² = 170  

b² = 170 - 1  

b² = 169  

b = 13 or b = -13

So b equals 13 or -13.


Last verified on 25-05-2026

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