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gypsi Group Title

Please explain...

  • 2 years ago
  • 2 years ago

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  1. optiquest Group Title
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    its simply, really

    • 2 years ago
  2. gypsi Group Title
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    \[6\div r ^{2}-1 -1\div2=1\div r-1\]

    • 2 years ago
  3. gypsi Group Title
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    lcd=\[(r ^{2}-1)(r+1)(2)?\]

    • 2 years ago
  4. gypsi Group Title
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    the last term is suppose to be 1/r+1

    • 2 years ago
  5. asnaseer Group Title
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    is this your question?:\[\frac{6}{r^2-1}-\frac{1}{2}=\frac{1}{r+1}\]

    • 2 years ago
  6. gypsi Group Title
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    yes

    • 2 years ago
  7. asnaseer Group Title
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    use the fact that:\[r^2-1=(r+1)(r-1)\]

    • 2 years ago
  8. optiquest Group Title
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    okay r^2-1 = (r+1)(r-1) make all the denominators match

    • 2 years ago
  9. asnaseer Group Title
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    and then multiply both sides by (r+1). that should simplify the expression.

    • 2 years ago
  10. asnaseer Group Title
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    I need to leave now - but hopefully there are plenty of people here that can assist you...

    • 2 years ago
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is replying to Can someone tell me what button the professor is hitting...

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