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? asked in Science & MathematicsMathematics · 10 years ago

Please Solve this Simple Surd Question for me?

Its a simple question, it is:

1/√7 - √3

see this image if you did not understand the question: http://imageshack.us/photo/my-images/28/imgsurd.pn...

thanks for reading.

2 Answers

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  • Ed I
    Lv 7
    10 years ago
    Favorite Answer

    I think you mean 1/(√7 - √3).

    1/(√7 - √3) • (√7 + √3)/(√7 + √3) = (√7 + √3)/(7 - 3) = (√7 + √3)/4

  • TomV
    Lv 7
    10 years ago

    1/√7 - √3 is not the same as 1/(√7-√3). Remember PEDMAS?

    Since it's not an equation, I assume the problem is to rationalize the denominator. If that's not correct, you should state your question instead of leaving it for someone to assume what you want.

    1/(√7-√3) = (√7+√3)/(7-3) =(1/4)(√7+√3)

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