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If a line makes angle 90^@, 60^@and 30^...

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

Text Solution

Verified by Experts

`l=cos90=0`
`m=cos60=1/2`
`n=cos30=sqrt3/2`
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