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 theseTimer, Stove, Marionette, Tools, Train, Machete, Dutch oven, Yarn, Feast, Hot water bottle, 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 #5256


anonymous
anonymous
sketch #5415


anonymous
anonymous
sketch #1328


anonymous
anonymous
sketch #5071 Rihanna by Johan Kennet Espinoza Moreno


anonymous
anonymous
sketch #5264


anonymous
anonymous
sketch #5232 Avril by Teresa Temacha


Sam Torres
sketch #2723 by Sam Torres


anonymous
anonymous
sketch #5166 Jigsaw by Gisele Siqueira Zanni


anonymous
anonymous
sketch #1732


anonymous
anonymous
sketch #5134


anonymous
anonymous
sketch #2187


anonymous
anonymous
sketch #4904


anonymous
anonymous
sketch #3261


Lucy Barnard
sketch #249 Rocket


anonymous
anonymous
sketch #5348


anonymous
anonymous
sketch #5197 Rihanna by Ben Hall


anonymous
anonymous
sketch #3558 Eye Rubel Parvez


anonymous
anonymous
sketch #2574


anonymous
anonymous
sketch #5062


anonymous
anonymous
sketch #5054 Angelina Jolie by Hailey So Pretty


anonymous
anonymous
sketch #5285


Szabó Zoltán
sketch #2828 One Direction Szabó Zoltán


anonymous
anonymous
sketch #4905 The Little Prince by Gaurav Patel


anonymous
anonymous
sketch #5351


anonymous
anonymous
sketch #2992 Dragon by Iky Sahendra Putra


Jaroslav Florian
sketch #90 JF Style!


anonymous
anonymous
sketch #4093 freefree


sketchmaster
sketch #2627 Taz by sketchmaster


Na Ruro
sketch #2715 Angelina


anonymous
anonymous
sketch #1453

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