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)( a, b, c, x, y, z khác 0). CMR a/x=b/y=c/z
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.
C/m: 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
Cho [bz-cy]\a=[cx-az]\b=[ay-bx]\c.CMR:x\a=y\b=z\c
Cho dãy tỉ số: (bz-cy)/a=(cx-az)/b=(ay-bx)/c
CMR: x/a=y/b=z/c
