1.

The vectors from origin to the points A and B are \[\overrightarrow{A}=3\hat{i}-6\hat{j}+2\hat{k}\] and \[\overrightarrow{B}=2\hat{i}+\hat{j}-2\hat{k}\] respectively. The area of the triangle OAB be

A.             \[\frac{5}{2}\sqrt{17}\] sq.unit
B.                                         \[\frac{2}{5}\sqrt{17}\] sq.unit
C.             \[\frac{3}{5}\sqrt{17}\] sq.unit
D.                                         \[\frac{5}{3}\sqrt{17}\] sq.unit
Answer» B.                                         \[\frac{2}{5}\sqrt{17}\] sq.unit


Discussion

No Comment Found

Related MCQs