® In three dimensions, the coordinate axes of a rectangular Cartesian coordinate system are three mutually perpendicular lines. The axes are called the x , y and z -axes. ® The three planes determined by the pair of axes are the coordinate planes, called XY, YZ and ZX- planes . ® The three coordinate planes divide the space into eight parts known as octants .
📖 generic · CBSE Class 11 English medium · MATHEMATICS · Page 289
® In three dimensions, the coordinate axes of a rectangular Cartesian coordinate
Chapter 3: 9 · MATHEMATICS
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