Question

Angle between the position vector and each of the primary coordinate planes

Answer 1

Answer:

The angle between two planes is the angle between the normal to the two planes. Read this lesson on Three Dimensional Geometry to understand how the angle between two planes is calculated in Vector form and in Cartesian form. The understanding of the angle between the normal to two planes is made simple with a diagram. A solved example, in the end, is also explained to understand how the calculation is performed.