defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Vector Algebra Applications of Vectors
Find the area of the triangle ABC if adjacent sides of a triangle are \(\overrightarrow {AB} = \hat i + 2\hat j + 3\hat k\;and\;\overrightarrow {BC} = 3\hat i + 7\hat j + \hat k\)
1
\(\frac {\sqrt{426}}{2}\)
2
61
3
\(\frac {\sqrt{426}}{3}\)
4
426