Can anyone teach me about ellipse and hyperbola?
Especially,
$\displaystyle \frac{x^2}{a^2}+\frac{y^2}{b^2}=1$
$\displaystyle \frac{x^2}{a^2}-\frac{y^2}{b^2}=1$
$\displaystyle \frac{y^2}{a^2}-\frac{x^2}{b^2}=1$
no. we study a lot more. but towards the end of high school we are told to pick subjects that we want to specialize in. Three subjects are mandatory, including math and english, but for the others, you can pretty much do want you want. so a science person would choose science courses and so on. in all, you must do at least 8 subjects