Need solution for RD Sharma Maths Class 12 Chapter Algebra of Matrices Excercise 4.4 Question 10
Given: If denotes direction cosines of 3 mutually ⊥ vertices
Hint: I refers to identity function, the of matrix can be obtained by reflecting the elements along its main diagonal.
Given are the direction cosines of 3 mutually + vectors in space.
From (1) & (2) we get