The angle between the line `x=1=y=2 =z/1 and x/1=y=-1= z=0` isA. `30^(@)`B. `60^(@)`C. `90^(@)`D. `0^(@)`

The angle between the line `x=1=y=2 =z/1 and x/1=y=-1= z=0` isA. `30^(

1.	The angle between the line `x=1=y=2 =z/1 and x/1=y=-1= z=0` isA. `30^(@)`B. `60^(@)`C. `90^(@)`D. `0^(@)`
Answer» Correct Answer - C Given lines are `(x-1)/(0)=(y-2)/(0)=z/1` `and x/1=(y+1)/(0)=z/0` `"Here", l_1=0, m_(1)=0, n_(1)=1` `and l_2=1, m_2=0n_(2)=0` `therefore cos theta =l_(1)l_(2)+m_(1)m_2+n_1n_2=0.1+0.0+0.1=0` `Rightarrow theta=90^(@)`

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The angle between the line `x=1=y=2 =z/1 and x/1=y=-1= z=0` isA. `30^(@)`B. `60^(@)`C. `90^(@)`D. `0^(@)`

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