Question

rationalise the denominator 1 by 4-√2​

Answer 1

Answer:

$\frac{1}{4 - \sqrt{2} } \\ = \frac{1}{4 - \sqrt{2} } \times \frac{4 + \sqrt{2} }{4 + \sqrt{2} } \\ = \frac{4 + \sqrt{2} }{16 - 2} \\ = \frac{4 + \sqrt{2} }{14}$

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Answer 2

Step-by-step explanation:

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