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Q:

यदि x+y+z=10, x2+y2+z2=30, है, तो x3+y3+z3-3xyz  का मान ______ है।

  • 1
    −10
  • 2
    −70
  • 3
    −50
  • 4
    −30
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Answer : 3. "−50"

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