( x - 1 ) , y = 7
Có 2 TH:
TH1
x - 1 = 7
x = 7 + 1
x = 8
y = 1
TH2:
x - 1 = 1
x = 1 + 1
x = 2
y = 7
Tự kết luận nhé
( x - 1 ) , y = 7
Có 2 TH:
TH1
x - 1 = 7
x = 7 + 1
x = 8
y = 1
TH2:
x - 1 = 1
x = 1 + 1
x = 2
y = 7
Tự kết luận nhé
Tim cap so x ; y biet :
x . ( y - 2 ) = 7
tim chu so thich hop thay vao x,y,m,n biet xy,mn-0,xy
cac ban giai bang cach lam cua cap 1 nha
Tim hai so x,y biet hieu giua so lon va so be bang 216 don vi va x bang 1/3 y?
Tim cap x ; y :
( x - 1 ) . ( y - 2 ) = 5
y*2+y/2=10
tim x biet 1/2+1/3 <x<3-1/3
so cac phan so co mau so bang 100 va nho hon 1
Biet 35m<y<36m
a, Tim mot so do do dai thich hop cua y voi don vi do la met.
b,Tim hai so do do dai thich hop cua y sao cho chung la mot cap so tu nhiengom so be nhat va so lon nhat trong cac so tu nhien thich hop voi cung don vi do.
tim so tu nhien y biet: 9< 2,5 x y< 11
Tim cap x ; y :
x . y = 5
tim so tu nhien lien tiep biet x va y
x < 12,34 < y