Sint=0⇒t=πn
tgt=-√3⇒x=-π/3+πn
4 3/5*2,7=4,6*2,7=12,42=12 21/50
47,52:1,8-17×3+0,72×51=12,12
1)47,52:1,8=26,4
2)17×3=51
3)0,72×51=36,72
4)26,4-51=-24,6
5)-24,6+36,72=12,12
<span>15:(3 12/17+2 5/17)+(4,2-2 3/5):4 = 15:6+ (4,2 - 2,6):4 = 2,5 +1,6:4= 2,5+0,4 =2,9</span>