Question

rationalise the denominator of 1 by 5+3V2​

Answer 1

$\frac{1}{(5 + 3 \sqrt{2} )} \frac{(5 - 3 \sqrt{2} )}{(5 - 3 \sqrt{2}) } \\ = \frac{5 - 3 \sqrt{2} }{25 - (9 \times 2)} = \frac{5 - 3 \sqrt{2} }{7}$

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Answer 2

Answer:

1/5+3root2

1/5+3root2*5-3root2/5-3root2

5+3root2/25-18

5+root2/7-ans...