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The plane ax+by=0 is rotated through an ...

The plane `ax+by=0` is rotated through an angle `alpha` about its line of intersection with the plane `z=0`. Show that the equation to the plane in new position is `ax+bypmzsqrt(a^2+b^2)tanalpha=0`.

A

`ax - by pm z sqrt(a^(2) +b^(2)) tan alpha = 0 `

B

`ax + by pm z sqrt(a^(2) +b^(2)) tan alpha = 0 `

C

`ax - by pm z sqrt(a^(2) - b^(2)) tan alpha = 0 `

D

None of these

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The correct Answer is:
B
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DISHA PUBLICATION-THREE DIMENSIONAL GEOMETRY -Exercise -2 : Concept Applicator
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