1 вариант. 4.вычислите: 2 вариант. 1) cos0 0 +3sin 90 0 = 1) cos180 0 +5sin90 0 = =1+3·1=1 =-1+5·1=5 2) sin 270 0 -2cos 180 0 = 2) sin180 0 -3cos0 0 = =-1+2=1 =0-3=-3 3) 1+ctg270 0 -5tg360 0 = 3) sin60 0 +cos30 0 = =1+0+0=1 4) sin30 0 +cos60 0 = 4)tg