Answer:
D)
Step-by-step explanation:
=> [tex]\frac{1}{\sqrt{9}-\sqrt{8} }[/tex]
Multiplying and dividing by conjugate [tex]\sqrt{9} +\sqrt{8}[/tex]
=> [tex]\frac{1}{\sqrt{9}-\sqrt{8} }* \frac{\sqrt{9}+\sqrt{8} }{\sqrt{9}+\sqrt{8}}[/tex]
=> [tex]\frac{\sqrt{9}+\sqrt{8} }{\sqrt{9^2-\sqrt{8}^2 } }[/tex]
=> [tex]\frac{\sqrt{9} +\sqrt{8}}{9-8}[/tex]
=> [tex]\sqrt{9} +\sqrt{8}[/tex]
=> 3 + [tex]2\sqrt{2}[/tex]
