Mark the correct alternative in each of the following:
If the vectors 
and 
are coplanar, then m =
Here, vector a, b, and c are coplanar. So, 
.
∴ 
∴ 4(8-30)-11(28-6)+m(35-2)= 0
∴ 4(-22)-11(22)+33m = 0
∴ -88 -242 +33m = 0
∴ 33m = 330
∴ m = 10
1
Mark the correct alternative in each of the following:
If the vectors and are coplanar, then m =
Here, vector a, b, and c are coplanar. So, .
∴
∴ 4(8-30)-11(28-6)+m(35-2)= 0
∴ 4(-22)-11(22)+33m = 0
∴ -88 -242 +33m = 0
∴ 33m = 330
∴ m = 10