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The angle between the line x=1=y=2 =z/1 ...

The angle between the line `x=1=y=2 =z/1 and x/1=y=-1= z=0` is

A

`30^(@)`

B

`60^(@)`

C

`90^(@)`

D

`0^(@)`

Text Solution

Verified by Experts

The correct Answer is:
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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