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Q: In ∆ABC, AB = c cm, AC = b cm and CB = a cm. If ∠A = 2∠B, then which of the following is true?
  • A. a² = b² – ac
  • B. a² = b² – bc
  • C. a² = b² + ac
  • D. a² = b² + bc
Correct Answer: Option D -
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Explanations:

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