Coplanar vectors...?

1) Find all values of "t" such that the three vectors A=(1,2,3), B=(4,5,6), and C=(7,8,t) are coplanar.

Coplanar vectors...?
yo. do u study in hb.


if yes, then u should know dat dis assinment got cancelled.


trust me.
Reply:do a triple scalar product and set to 0...t = 9...if you set up the determinant you easily see that the 2nd column should be1/2 the sum of the 1st %26amp; 3rd columns.

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