If a line in the space makes angle \alpha, \beta and \gamma with the coordinate axes, then \cos 2 \alpha+\cos 2 \beta+\cos 2 \gamma+ \sin ^2 \alpha+ \sin ^2 \beta + \sin ^2 \gamma equals

EAMCET Engineering 2009 Solved Paper

Section: Mathematics

Question : 140 of 160

Marks: +1, -0

If a line in the space makes angle α,β and γ with the coordinate axes, then cos‌2‌α+cos‌2‌β+cos‌2‌γ+sin‌2α+sin‌2β
+sin‌2γ equals

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