问各位大佬一个简单的数学问题,但本人太笨不会。想知道一下详细解释,如下图,该怎么证明? 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 theseSprinkler, Zebra, Whiskers, Fairy, Giraffe, Noose, Meatloaf, canyon, Musketeer, Submarine, 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 #5115


Na Ruro
sketch #2797 Homer by Na Ruro


anonymous
anonymous
sketch #3226 Goth Face


anonymous
anonymous
sketch #895


anonymous
anonymous
sketch #5204


anonymous
anonymous
sketch #5217


Loai Issa
sketch #2668 Butterfly by Loai Issa


Rachel Christa Ibarrientos
sketch #3897 dolphins playing over the sea


anonymous
anonymous
sketch #5248


anonymous
anonymous
sketch #5261


anonymous
anonymous
sketch #4688


anonymous
anonymous
sketch #1899 blue


anonymous
anonymous
sketch #3476 Happy valentines day! Simona Honigmelone


anonymous
anonymous
sketch #4273


anonymous
anonymous
sketch #5183


anonymous
anonymous
sketch #5237 Gotye by Jhonatan Soares


Rachel Roe
sketch #664 Spider on a plant pot


anonymous
anonymous
sketch #5221


anonymous
anonymous
sketch #3362 The Boss by David Torre


anonymous
anonymous
sketch #3670 Bugs Bunny by Jessica Column


anonymous
anonymous
sketch #3321 Baby Mirella Flowers


anonymous
anonymous
sketch #3604 Falling Manipati Surya


Ainhoa White
sketch #4305 Burka,


anonymous
anonymous
sketch #3496


anonymous
anonymous
sketch #839


anonymous
anonymous
sketch #5158 Till Lindemann by Cristina Love


anonymous
anonymous
sketch #5286 Adventure Time by Manu Kp

tomski问各位大佬一个简单的数学问题,但本人太笨不会。想知道一下详细解释,如下图,该怎么证明? 知乎 coloring