Question4. Find the acute angle which theline with direction cosines 1 – InterviewSolution

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1.	Question4. Find the acute angle which theline with direction cosines 1/V3, 1/V6, nmakes with positive direction of z-axis.
Answer» l=1/√3,m=1/√6 n=?nowl^2+m^2+n^2=1hence1/3+1/6+n^2=11/2+n^2=1n^2=1/2n=1/√2

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