Simplify each of the following by ration...

Simplify each of the following by rationalising the denominator :
i) `(6-4sqrt(2))/(6+4sqrt(2))`
ii) `(sqrt(7)-sqrt(5))/(sqrt(7)+sqrt(5))`
iii) `(1)/(3sqrt(2)-2sqrt(3))`

Verified by Experts

The correct Answer is:

`17 - 12 sqrt(2)` (ii) `6- sqrt(35)` (iii) `(3 sqrt(2) + 2 sqrt(3))/(6)` (iv) `(9sqrt(15)-3sqrt(10)-3sqrt(21)+ sqrt(14))/(25)`

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