Q22 of 45 Page 1

Show that the lines andare coplanar.

Equation of lines given, ⇒ (i)


and ⇒ (ii)


we know that, two lines are coplanar if


=0


Now,


=


= 3(12+5)+3(12+35)+8(4-28)


=3× 17+3× 44+8×-24


=51+141-192


=192-192=0


Hence, lines (i) and (ii) are coplanar.


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