IGNOU MTE 2 2026 - Find the direction cosines of the perpendicular from the origin to the

Question

Find the direction cosines of the perpendicular from the origin to the plane

09 Jan 2026

Answer :

Word Count : 215

Let the equation of the plane be: [ ax + by + cz + d = 0 ] The perpendicular from the origin to the plane has direction ratios proportional to the normal vector of the plane, i.e., ((a, b, c)). Let ((l, m, n)) be the direction cosines of the perpendicular. Then, by definition: [ l : m : n =

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