grehht
2012-12-09, 14:23
The conic sections are formed by intersecting the double cone with a plane. They include ellipses,hyperbolas, and parabolas. They are given by degree 2 polynomials in two variables. Graph these conic
sections and name each one.
9x^2-4y^2-72x+8y+176=0
的指令。。。。
sections and name each one.
9x^2-4y^2-72x+8y+176=0
的指令。。。。