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Hollywood_chrissy

  • 3 years ago

Rationalise 1/(1+2sqrt(3)-sqrt(2))

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  1. estudier
    • 3 years ago
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    (-13 + 11sqrt2 +18sqrt3 - 4sqrt6) /73

  2. Hollywood_chrissy
    • 3 years ago
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    Did you first multiply top and bottom by 1-2sqrt(3)+sqrt(2)

  3. chihiroasleaf
    • 3 years ago
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    |dw:1351247704457:dw| first multiply this, twhat do you get? *you'll need to rationalize twice

  4. Hollywood_chrissy
    • 3 years ago
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    @estudier my text gives the result (1+2sqrt(3)+sqrt(2))(11-4sqrt(3))/73

  5. estudier
    • 3 years ago
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    Yes, I got that as well, then multiplied it out...

  6. Hollywood_chrissy
    • 3 years ago
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    So you did you multiply by (1-2sqrt(3)+sqrt(2)) top and bottom.

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