3-1 Solving Linear Systems by Graphing
... *A linear system in three variables is an equation in the form ax + by + cz = d where a, b, and c are not all zero. A solution of such a system is an ordered __________________ (x, y, z) whose coordinates make each equation true. The graph is a plane in three-dimensional space. See page 178 for exam ...
... *A linear system in three variables is an equation in the form ax + by + cz = d where a, b, and c are not all zero. A solution of such a system is an ordered __________________ (x, y, z) whose coordinates make each equation true. The graph is a plane in three-dimensional space. See page 178 for exam ...
Complex Numbers Notes 1. The Imaginary Unit We use the symbol i
... The modulus, or length, of a complex no. is the distance from the origin to the point representing the complex number on an Argand diagram. We use 2 lines either side of a complex no. to represent the modulus. E.g the modulus of 3 - 4i is written |3 - 4i|. This is then the distance from (0,0) to (3, ...
... The modulus, or length, of a complex no. is the distance from the origin to the point representing the complex number on an Argand diagram. We use 2 lines either side of a complex no. to represent the modulus. E.g the modulus of 3 - 4i is written |3 - 4i|. This is then the distance from (0,0) to (3, ...
