[tex] \frac{1}{ \sqrt{9 } - \sqrt{ 8} } \: \: \: is \: equal \: to[/tex]
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Answer:
√9 + √8
Step-by-step explanation:
The Rationalising Factor of √9 -√8 is √9+√8
We know that (a+b)(a-b) = a^2 - b^2
This will eliminate the roots making the denominator rational.