Question

Rationalise the denominator of 7√3÷√10+√3-2√5÷√6+√5-3√2÷3√2+√15

Answer 1

Answer:

$= \sqrt{30} - 3 - (2 \sqrt{30} - 16) - 6 - \sqrt{30} )$

$= \sqrt{30} - 3 - 2 \sqrt{30} + 10 - 6 + \sqrt{30}$

$= 10 - 9 + 2 \sqrt{30} - 2 \sqrt{30}$

$= 1$

Answer 2

Answer:

$\sqrt{30} - 3 - (2 \sqrt{30} - 16) - 6 - \sqrt{30} )$

$= \sqrt{30} - 3 - 2 \sqrt{30} + 10 - 6 + \sqrt{30}$

$= 10 - 9 + 2 \sqrt{30} - 2 \sqrt{30}$

$= 1$