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OpenStudy (anonymous):
How do you rationalize something like 1/ (11xsqrt 5 - 4ysqrt3)
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OpenStudy (anonymous):
First you multiply the top and bottom by the bottom equation, but change the sign to a plus (+) sign. Then the top will be \[11x \sqrt{5} + 4y \sqrt{3} \] Then the bottom will be \[605x ^{2}- 48y ^{2}\]
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