 1 3sin 0 4cos 180. Sin 270. 1 3sin 0 4cos 180. Sin^2(180-a). Cos 180. |  Cos 90. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. Sin 180. 1 3sin 0 4cos 180. |
 Cos(180-x). Sin(180-30). Cos 90-альфа. Cos 135. Sin 180. |  Cos 225. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. Cos 70. |
`=sin20`>0\\\\cos200`=cos(180+20)`=-cos20`<0\\\\tg310`=tg(360-50)`=-tg50`<0\\\\ctg(-400)=-ctg400=-ctg(360+40)=-ctg40<0\\\\sin(-7\pi/11)=-sin(7\pi/11)=-sin(%20\pi%20-3\pi%20/11)=-sin(3\pi/11)<0\\\\cos(31%20\pi/5)=cos(6%20\pi%20+\pi/5)=cos(\pi/5)>0 "3 sin 2 120 -4cos180 +3tg135. Cos 60. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180.") 3 sin 2 120 -4cos180 +3tg135. Cos 60. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. |
 Cos(180-2a). 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. Tg 135. Sin 360 - альфа. |  Cos(180-30). 1 3sin 0 4cos 180. Cos 180. Tg 135 градусов. 1 3sin 0 4cos 180. |
 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. Cos 180. Sin(180-a-b). |  1 3sin 0 4cos 180. Sin(180-30). 1 3sin 0 4cos 180. Sin(180-30). Tg 135 градусов. |
 1 3sin 0 4cos 180. Cos 60. Sin 270. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. |  Cos 135. Cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. |
 Cos 60. Cos 90. Cos 60. 1 3sin 0 4cos 180. 3 sin 2 120 -4cos180 +3tg135. |  Sin(180-30). 1 3sin 0 4cos 180. Tg 135 градусов. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. |
 1 3sin 0 4cos 180. Cos 70. 1 3sin 0 4cos 180. Sin(180-30). Sin(180-a-b). |  Cos 70. Sin 360 - альфа. 1 3sin 0 4cos 180. Sin(180-30). Cos(180-x). |
 Cos 225. Cos 60. Sin(180-a-b). Cos 60. Cos 180. |  1 3sin 0 4cos 180. Sin 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. Sin 360 - альфа. |
 1 3sin 0 4cos 180. Sin(180-30). Cos 225. 1 3sin 0 4cos 180. Tg 135. |  Cos(180-x). 1 3sin 0 4cos 180. Sin(180-30). Cos 90. Cos 70. |
 Cos 180. Sin 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. 1 3sin 0 4cos 180. |