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Q:

यदि a=25, b=15 , c=-10  हो तो $$ {a^{3}+b^{3}+c^{3}-3abc\over {(a-b)^{2}+(b-c)^{2} +(c-a)^{2}}}$$  का मान ज्ञात करों?

  • 1
    30
  • 2
    -15
  • 3
    -30
  • 4
    15
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Answer : 4. "15"

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