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The direction cosines of a line equally inclined to three mutually perpendicular lines having direction cosines as l₁,m₁,n₁; l₂,m₂,n₂ and l₃,m₃,n₃ are

A. l₁ +l₂ +l₃ , m₁ +m₂ +m₃ , n₁ +n₂ +n₃

B. l₁ +l₂ +l₃ /3, m₁ +m₂ +m₃ /3, n₁ +n₂ +n₃/3

C. l₁ +l₂ +l₃ /√3, m₁ +m₂ +m₃ /√3, n₁ +n₂ +n₃/√3

D. l₁ +l₂ +l₃ /2, m₁ +m₂ +m₃ /2, n₁ +n₂ +n₃/2

E. None of the above

View Answer

Correct choice: C

Explanation:

None

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Eamcet Mathematics Co - ordinate Geometry 3D Geometry

Eamcet Mathematics
Co - ordinate Geometry 3D Geometry