Cho cot = -5 ,90°< x<180°.Tìm sin, cos

Cho A =(-3,4) B = {x thuộc R / ( x+5) (3-x)> 0} Tìm A \C

Tìm A giao B , A hợp B biết a. A= [ 0,+ dương vô cực) b.B=( âm vô cực, 4] b A= [ -4,1] b B(-3,3) c A =(-3,3) b B=[1, dương vô cực) Mn giúp mk với

Viết câu hỏi đuôi 1Do these children go to school on sunday? -->These children 2Does his father always drink a cup of tea after lunch? 3 Does your mother often get up early ? -->You mother 4Did those students play badminton last sunday afternoon? -->Those students 5 Has your mother just gone out? -->Your mother