A) (?1, 2) and (?1, ?6)
B) (?1, 2) and (6, 1)
C) (1, ?2) and (1, ?6)
D) (?1, ?2) and (1, 6)
Correct Answer: A
Solution :
\[\frac{{{(x+1)}^{2}}}{\frac{225}{25}}+\frac{{{(y+2)}^{2}}}{\frac{225}{9}}=1\] \[a=\sqrt{\frac{225}{25}}=\frac{15}{5},\,b=\sqrt{\frac{225}{9}}=\frac{15}{3}\] Þ \[e=\sqrt{1-\frac{9}{25}}=\frac{4}{5}\] Focus\[=\left( -1,-2\pm \frac{15}{3}.\frac{4}{5} \right)=(-1,-2\pm 4)\]=(?1,2); (?1,?6) .
You need to login to perform this action.
You will be redirected in
3 sec
