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putty

  • 3 years ago

a2 + b2 = 5ab find the value of a3/b3 + b3/a3

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  1. Jonask
    • 3 years ago
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    use \[(x^3+y^3)=(x+y)(x^2-xy+y^2)\]

  2. Jonask
    • 3 years ago
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    a/b=x b/a=y a/b+b/a=5

  3. Jonask
    • 3 years ago
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    x+y=5

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