Question

rationalise the denominetor of 4√5/√7-√3​

Answer 1

Answer:

$\frac{4 \sqrt{5} }{ \sqrt{7} - \sqrt{3} } \\ \\ = \frac{4 \sqrt{5} }{ \sqrt{7} - \sqrt{3} } \times \frac{ \sqrt{7} + \sqrt{3} }{ \sqrt{7} + \sqrt{3} } \\ \\ = \frac{4 \sqrt{35} + 4 \sqrt{15} }{ {( \sqrt{7} )}^{2} - {( \sqrt{3} )}^{2} } \\ \\ = \frac{4 \sqrt{35} + 4 \sqrt{15} }{7 - 3} \\ \\ = \frac{4( \sqrt{35} + \sqrt{15} ) }{4} \\ \\ = \sqrt{35} + \sqrt{15}$

hope this much helps uh ❣️

Answer 2

Hope it's Helps to u ✌️✌️

$\sqrt{35} + \sqrt{15}$