emily7623 emily7623
  • 09-09-2018
  • Mathematics
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rationalize the denominator of the given expression

rationalize the denominator of the given expression class=

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Аноним Аноним
  • 09-09-2018

You multiply top and bottom of the fraction by the conjugate of 5 - √2  which is 5 + √2.   This produces a rational denominator:-

=    √7 ( 5 + √2)  /   (5 - √2)(5 + √2)

=  √7 ( 5 + √2) /   (25 -2)

=   (√7 ( 5 + √2)) / 23    answer


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