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Show that the lines vec r=(2 hat j-3 ha...

Show that the lines ` vec r=(2 hat j-3 hat k)+lambda( hat i+2 hat j+3 hat k)a n d\ vec r=(2 hat i+6 hat j+3 hat k)+mu(2 hat i+3 hat j+4 hat k)` are coplanar. Also, find the equation of the plane containing them.

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