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If alpha, beta, gamma are the angles tha...

If `alpha, beta, gamma` are the angles that a line makes with the positive direction of x, y, z axis respectively, then the direction cosines of the line are

A

`sin alpha, sin beta,sin gamma`

B

`cos alpha, cos beta, cos gamma`

C

`tan alpha, tan beta, tan gamma`

D

`cos^(2)alpha, cos^(2)beta, cos^(2)gamma`

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The correct Answer is:
B
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HIMALAYA PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
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  4. The distance of the point P(a, b, c) from the x-axis is

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  5. The equation of x-axis in space are

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  7. Distance of the point (alpha, beta, gamma) from the y-axis is

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  15. A line with direction cosines proportional to 2,1,2 meets each of the ...

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  16. A line makes some angle theta, with each of the x and z-axis. If the a...

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