A line makes angles `alpha,betaa n dgamma`with the coordinate axes. If – InterviewSolution

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1.	A line makes angles `alpha,betaa n dgamma`with the coordinate axes. If `alpha+beta=90^0,`then find `gammadot`
Answer» Here `cos^(2)alpha+cos^(2)(90-alpha)+cos^(2)gamma=1` or `" "cos^(2)alpha+sin^(2)alpha+cos^(2)gamma=1` or`" "cos^(2)gamma+1=1 or gamma=90^(@)`

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