The area of the triangle where two sides are given by \(\left( {2\bar i - 7\bar j + \bar k} \right)\;\)and \(\left( {4\bar j - 3\bar k} \right)\)
is
1
17
2
\(\frac{{17\sqrt {489} }}{2}\)
3
17/4
4
\(\frac{{\sqrt {389} }}{2}\)
The area of the triangle where two sides are given by \(\left( {2\bar i - 7\bar j + \bar k} \right)\;\)and \(\left( {4\bar j - 3\bar k} \right)\)
is