Question:medium
If $\alpha, \beta, \gamma$ are the angles which a half ray makes with the positive direction of the axes, then $\sin^2\alpha + \sin^2\beta + \sin^2\gamma$ is equal to
If $\alpha, \beta, \gamma$ are the angles which a half ray makes with the positive direction of the axes, then $\sin^2\alpha + \sin^2\beta + \sin^2\gamma$ is equal to
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$\cos^2\alpha + \cos^2\beta + \cos^2\gamma = 1$ for direction cosines.
Updated On: Apr 8, 2026
- $1$
- $2$
- $0$
- $-1$
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The Correct Option is B
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