Question

rationalize the denominator of √7 + 2 ÷ √7 - 2​

Answer 1

Answer:

hope it can help you

Step-by-step explanation:

the conjugate pair of

$\sqrt{7} \: - 2$

is

$\sqrt{7} + 2$

$\frac{ \sqrt{7} + 2 }{ \sqrt{7} - 2 } = \frac{ \sqrt{7} + 2 }{ \sqrt{7} - 2 } \: \times \frac{ \sqrt{7} + 2 }{ \sqrt{7} + 2 }$

$\: \: \: \: \: \: \: \: \: = \frac{7 + 4}{7 - 4}$

$\: \: \: \: \: \: \: \: \: \: = \frac{11}{3}$