Add:
`6ax - 2by + 3cz, 6by - 11ax - cz and 1- cz - 2ax - 3by`

Add : 3ax+5by -cz, by-6ax-3cz and 5cz-ax-2by .

Add : 9 ax , + 3 by - cz , - 5 by + ax + 3 cz

If a, b and c are three different numbers and ax : by : cz = 1 : 2 : -3, then ax + by +cz =

If x^(2) : (by + cz) =y^(2) : (cz + ax) = z^(2) : (ax + by) = 1 , then show that a/(a+x) + b/(b+y) + c/(c+z) = 1 .

> ax + by + cz = Ohere, n1.n2 = 0

The distance between the parallel planes: ax + by + cz + d = 0 and ax + by+ cz + d' =0 is :

The plane ax + by + cz = 1 intersects the axes in A, B and C respetively. The centroid of Delta ABC is G (1/6, -1/3 , 1) . Then a + b + 3c = .......