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899

Q:

दिया है कि (a²+b²)=60, तो (a+b)²+(a–b)². का मान ज्ञात कीजिए।

  • 1
    90
  • 2
    120
  • 3
    140
  • 4
    150
  • Show Answer
  • Workspace

Answer : 2. "120"

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