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If the planes vec r ( hat i+ hat j+ hat...

If the planes ` vec r ( hat i+ hat j+ hat k)=q_1, vec r ( hat i+2a hat j+ hat k)=q_2a n d vec r (a hat i+a^2 hat j+ hat k)=q_3` intersect in a line, then the value of `a` is a. `1` b. `1//2` c. `2` d. `0`

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CENGAGE PUBLICATION-THREE DIMENSIONAL GEOMETRY-All Questions
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  2. A line with direction cosines proportional to 1,-5, a n d-2 meets li...

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  3. If the planes vec r ( hat i+ hat j+ hat k)=q1, vec r ( hat i+2a hat j...

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  8. The equation of two straight lines are (x-1)/2=(y+3)/1=(z-2)/(-3)a n...

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  12. Statement 1: Let theta be the angle between the line (x-2)/2=(y-1)/(-3...

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  13. If the volume of tetrahedron A B C D is 1 cubic units, where A(0,1,...

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