Introduction to 3DHard
Question
Consider the plane 
= d1 and 
= d2, then which of the following are true -
= d1 and = d2, then which of the following are true -Options
A.they are perpendicular if 
= 0
= 0B.angle between them is cos-1 
C.normal form of the equation of plane are 
D.none of these
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