Cho x= 3/2 va y= 8/3
a) Bieu dien x;y tren hai truc so khac nhau
b) Bieu dien x;y tren cung 1 truc so
cho \(x=\frac{3}{2}y=\frac{8}{3}\)
a, Bieu dien x,y tren 2 truc so khac nhau
b,Bieu dien x,y tren 1 truc so
cho \(x=\frac{3}{2}\) ;\(y=\frac{8}{3}\)
a) bieu dien x,y tren 2 truc so khac nhau
b)bieu dien x,y tren 1 truc so
bieu dien so huu ti 3/-4 tren truc so
Neu 3 cach viet cua so huu ti -3/5 va bieu dien no tren truc so
a,ve do thi cac ham so y=\(\frac{-3}{2}\)x va y=\(\frac{2}{3}\)x tren cung 1 he truc toa do
b,tren do thi ham so y=\(\frac{-3}{2}\)x lay diem A co hoanh do la 2.tren do thi ham so y=\(\frac{2}{3}\)x.Lay diem C co hoanh do la 3.do goc AOC,sau do bieu dien diem B tren mat phang toa do sao cho OABC la hinh vuong
Chung to rang tren truc so, giua hai diem bieu dien hai so huu ti khac nhau bao gio cung co it nhat 1 diem huu ti nua.
ve do thi ham so sau cung 1 he truc oxy y=3x , y=-2x tinh dien tich tam giac tao boi 2 do thi ham so tren va duong thang y = 3/2
cho hai ham so y=f(x)=|2x| va y=g(x)=3
a)ve tren cung mot he truc toa do Oxy do thi cua hai ham so do
b)dung do thi ham so tim cac gia tri cua x sao cho |2x|<3
