Question

If ZY=3XY then ZX =4XY

Answer 1

Given

ZY=3XY

Prove that

ZX =4XY

To proof

As given

ZY=3XY

as shown in the diagram given in the question

we get

XZ = XY + YZ

As given in the question

ZY=3XY

put this in the above equation

we get

XZ = XY + 3XY

XZ = 4XY

Hence proved