18. 8. 201415 tis. zhlédnutíVisit http://ilectureonline.com for more math and science lectures!In this video I will introduce the half-angle formula sin(x/2)=?
14. 3. 2023483 zhlédnutíUnluckiest victor, also this is my 57th Demonlist deaths (153):54x11,55x11,56x17,57x3,58x39,59x4,60x2,61x6,62x4,63x13,64x12,65,66,69,70x2,71,72x2,74x5,76x6,7...