Question

rationalise
4÷(√7+√3)

Answer 1

Step-by-step explanation:

Rationalize denominator of 4 / ( √7 + √3 ). By multiplying numerator and denominator by ( √7 - √3 ). = ( √7 - √3 )

Answer 2

Answer:

$\frac{4}{ \sqrt{7} + \sqrt{3} } \\ \frac{4}{ \sqrt{7} + \sqrt{3} } \times \frac{ \sqrt{7} - \sqrt{3} }{ \sqrt{7} - \sqrt{3} }$

we know

(√a+√b) (√a-√b)=a-b

$\frac{ 4(\sqrt{7} - {\sqrt{3}) } }{ 7 - 3} \\ = \frac{ 4(\sqrt{7} - \sqrt{3})}{4}$

hope it helps