Question

please answer this question ​

Answer 1

Step-by-step explanation:

$= > \frac{ \sqrt{7} + \sqrt{5} }{ \sqrt{7} - \sqrt{5} } = a + b \sqrt{35} \\ = > \frac{7 + 5 + 2 \sqrt{35} }{7 - 5} = a + b \sqrt{35} \\ = > \frac{12 + 2 \sqrt{35} }{2} = a + b \sqrt{35} \\ = > 6 + \sqrt{35} = a + b \sqrt{35} \\ = > a = 6 \\ = > b = 1$