Biết rằng: b z - c y a = c x - a z b = a y - b x c Hãy chứng minh x : y : z = a : b : c
Cho (bz-cy/a)=(cx-az/b)=(ay-bx/c)( a, b, c, x, y, z khác 0). CMR a/x=b/y=c/z
Cho bx-ay/c=az-cx/b=cy-bz/a. CMR x/a=y/b=z/c
cho bz-cy/a = cx-az/b = ay-bx/c ( x,y , z khác 0 )
cmr : a/x = b/y = c/z
\(\dfrac{bz-cy}{z}=\dfrac{cx-az}{b}=\dfrac{ay-bx}{c}\) (1) CMR: \(\dfrac{x}{a}=\dfrac{y}{b}=\dfrac{z}{c}\) (*)
Cho (bz - cy)/a = (cx - az)/b = (ay - bx)/c
CMR : x/a = y/b = z/c
Cho bz-cy/a = cx-az/b = ay-bx/c
CMR x/a = y/b = z/c
cho bz - cy/a = cx -az/b = ay -bx /c. CMR: x/a =y/b= z/c
Cho (bz-cy)/a=(cx-az)/b=(ay-bx)/c
CMR: a/x=b/y=c/z