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If a line makes angle 90o , 60o and 3...

If a line makes angle `90o` , `60o` and `30o` with the positive direction of x, y and z-axis respectively, find its direction cosines.

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XII BOARDS PREVIOUS YEAR-XII Boards-All Questions
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  10. If A is a skew-symmetric matrix of order 3, then prove that det A = 0...

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