For a line with direction cosines l, m, n, the value of l² + m² + n² is: A. 0 B. 1 C. 2 D. Depends on line Answer: B) 1 Explanation: Direction cosines always satisfy l² + m² + n² = 1.

imo class 12 three dimensional geometry

For a line with direction cosines l, m, n, the value of l² + m² + n² is:

VAVidaara Admin Asked 6d ago 0 views 0 answers

For a line with direction cosines l, m, n, the value of l² + m² + n² is:

Answer: B) 1

Explanation: Direction cosines always satisfy l² + m² + n² = 1.

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