Currently studying math, sorry if my english is bad.
I am Wu Zhong Lan.
I am 18 years old =)
I am puzzled with some questions.
3 equations xy = 1 x^2 + y^2 = 1 x^2 + y^2 = 4
In surd form, show the 4 intersections of the last graphs with the first.
I am puzzled to where to start :S
Thank you =)