Q. 23

Show that the lin

Answer :

Given: Lines are:




To Show: Lines are coplanar


Proof:



Firstly, we find


Here,


So,





Now, we know that


The given are coplanar if and only if is perpendicular to


i.e.


Here,







Now, we have to find




We know that, in dot product



= -10 +10


= 0


Given lines are co planar





Equation of plane is



and


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