Các câu hỏi tương tự
Tìm a,b,c biết \(\frac{a}{2014}=\frac{b}{3}=\frac{c}{2}\)và 2015b - 2016c - a = -1
Cho \(\frac{a}{b}=\frac{c}{d}\). CMR: a) \(\left(\frac{a+b}{c+d}\right)^3=\frac{a^3-b^3}{c^3-d^3}\)
b) \(\frac{ac}{bd}=\frac{2015a^2+2016c^2}{2015b^2+2016d^2}\)
a, Cho F(x) = a x+b . Tim a,b biet f(0) = 3 va F(2) =-1
b, Cho F(x) =a x+ b. Tim a,b biet F(1) = -1 va F(-2) = 8
c, Cho F(x) =a x +b .tim a,b biet F(0) = 1 va F(-2) = -9
Tim a,b,c biet a/3=b/8=c/5 va 2/a+3/b-c=50
tim a b c biet 1/2a=2/3b=3/4c va a-b=15
tim a,b,c biet\(\frac{1}{2}a=\frac{2}{3}b=\frac{3}{4}c\) va a-b=15
tim a,b,c biet a:b:c =2:3:5 va a-b+c =20
tim a,b,c biet a=2b=3/2c va a^2+b^3-5c=a+b^3-5/3c
a) cho 2 stn a va b voi a<b thoa man 3(a+b) =5(a-b)
tim thuong cua 2 so
b) Tim cac so Nguyen Duong a, b, c biet rang : a3-b3-c3 =3abc va a2=2(b+c)