请问如何用旦德林双球证明抛物线是圆锥曲线? 知乎 Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: zhihu.com






Try and sketch some of thesePenguin, Vampire, Bolo tie, Purse handbag, Sock hop, Gorilla, Berries, Papoose, Beach, Cucumber, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #2919 Winnie the Pooh by Greet Kros-Lolkus


anonymous
anonymous
sketch #5124 Tony Tony Chopper by 陳一夫


Shuvo Islam
sketch #2770 Maggie by Shuvo Islam


Renjith Raj
sketch #1614 uncle bun


anonymous
anonymous
sketch #5286 Adventure Time by Manu Kp


Nina Mercedez
sketch #2849 dj


anonymous
anonymous
sketch #5288


anonymous
anonymous
sketch #5267


anonymous
anonymous
sketch #3662 Angel by Alexander Volodimirovich Danilchenko


anonymous
anonymous
sketch #600


anonymous
anonymous
sketch #3857


anonymous
anonymous
sketch #3145 Madoka by Николай Герасимов


anonymous
anonymous
sketch #1119 crimson


anonymous
anonymous
sketch #5343


anonymous
anonymous
sketch #1500


anonymous
anonymous
sketch #3631


anonymous
anonymous
sketch #2150 batman


anonymous
anonymous
sketch #3372 Erza by Konstantin Kuznetsov


anonymous
anonymous
sketch #5349


anonymous
anonymous
sketch #3986


Cristina Love
sketch #2788 Yuno Gasai from Mirai Nikki by Cristina Love


anonymous
anonymous
sketch #5264


anonymous
anonymous
sketch #3321 Baby Mirella Flowers


anonymous
anonymous
sketch #5206


anonymous
anonymous
sketch #4736 Naruto by Wellen Lima


anonymous
anonymous
sketch #933 mts


anonymous
anonymous
sketch #2549


anonymous
anonymous
sketch #5308 Taylor Swift by Gabi Ferrari

tomski请问如何用旦德林双球证明抛物线是圆锥曲线? 知乎 coloring