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CBSE Class XII Mathematics - Vector Algebra Assignment 4

2. If a vector makes angles with OX, OY and OZ respectively, prove that + sin2 = 2. 3. Find the direction cosines of a vector which is equally inclined with OX, OY and OZ. If l l is given, find the total number of such vectors. 4. A vector is inclined at equal angles to OX, OY and OZ. If the magnitude of is 6 units,