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If lx+my+nz=p is equation of a plane in ...

If lx+my+nz=p is equation of a plane in normal form, then

A

`l^2+m^2+n^2=1`

B

l,m,n are direction cosines of normal to the plane

C

`p gt 0`

D

All above

Text Solution

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The correct Answer is:
D
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