The value of for which the vectors ,

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

The value of

n

for which the vectors

2\hat{\mathbf{i}}+3\hat{\mathbf{j}}-2\hat{\mathbf{k}}

5\hat{\mathbf{i}}+n\hat{\mathbf{j}}+\hat{\mathbf{k}}

, and

-\hat{\mathbf{i}}+2\hat{\mathbf{j}}+3\hat{\mathbf{k}}

are coplanar is (1) 18 (2) 28 (3) 9 (4) 36