If \(\cos\alpha,\cos\beta,\cos\gamma\) are direction cosine of a line, then \(\sin^2\alpha+\sin^2\beta+\sin^2\gamma=\)
Answer & explanation
Correct answer: option 2
Use definition of direction cosine
If \(\cos\alpha,\cos\beta,\cos\gamma\) are direction cosine of a line, then \(\sin^2\alpha+\sin^2\beta+\sin^2\gamma=\)
Correct answer: option 2
Use definition of direction cosine