Question

solve the sum :rationalise the denominator 3√2-√7/3√3-√11

Answer 1

Answer:

3√2-√7 / 3√3-√11

We must multiply the denominator and the numerator by the *conjugate* of the denominator.

The conjugate means if the denominator of

3√2 - √7

_______ is 3√3 + 11

3√3 - √11

* Note the" - "becomes" + "