A) \[\sqrt{13}\]
B) \[\frac{\sqrt{13}}{3}\]
C) \[\frac{\sqrt{13}}{4}\]
D) \[\frac{\sqrt{13}}{2}\]
Correct Answer: B
Solution :
\[\frac{9}{{{a}^{2}}}=1\] Þ \[a=3\] and \[\frac{18}{{{a}^{2}}}-\frac{4}{{{b}^{2}}}=1\] Þ \[{{b}^{2}}=4\] Therefore, \[e=\sqrt{1+\frac{4}{9}}=\frac{\sqrt{13}}{3}\]
You need to login to perform this action.
You will be redirected in
3 sec
