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 theseSpinach, Key, Scorpion, Trampoline, Stake, Dessert cart, Snorkel, Haunted house, Bench, Cross, 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 #5119


anonymous
anonymous
sketch #3058 Marilyn Monroe by Adam Pyszny


anonymous
anonymous
sketch #2340


anonymous
anonymous
sketch #5206


Helyryn
sketch #297 Fish


anonymous
anonymous
sketch #3513


Donara Smbatyan
sketch #1504 donara


anonymous
anonymous
sketch #3510 Edward from FMA by Raman Chauhan


anonymous
anonymous
sketch #2937 Spongebob by Kalana Namikaze


anonymous
anonymous
sketch #5054 Angelina Jolie by Hailey So Pretty


anonymous
anonymous
sketch #4665 Iron Maiden EDDIE by Jenna Khoùlix�


anonymous
anonymous
sketch #4393 ant


anonymous
anonymous
sketch #3444 PSY by Melodee Ripepi


anonymous
anonymous
sketch #3197 Dragon by Yuryi Zambrano


sketchmaster
sketch #2593 Tweety by sketchmaster


anonymous
anonymous
sketch #3274


anonymous
anonymous
sketch #2453 Koi Fish


anonymous
anonymous
sketch #4589


anonymous
anonymous
sketch #3595


anonymous
anonymous
sketch #5197 Rihanna by Ben Hall


anonymous
anonymous
sketch #5048


anonymous
anonymous
sketch #5349


anonymous
anonymous
sketch #5127 Captain America by Mark Phillips


anonymous
anonymous
sketch #3127 Hulk George Lucaz


anonymous
anonymous
sketch #895


anonymous
anonymous
sketch #5078 Naruto by Shimun Yeyo Ahmed

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