state gov Karnataka Forest Guard (ಅರಣ್ಯ ರಕ್ಷಕ) Mock Test 2023 Mathematics Vector Algebra Types of Vectors
Find the unit vector in the direction of vector \(\rm \vec{a}= \hat i +4\hat j+8\hat k\)
1
\(\frac{1}{9} \hat i - \frac{4}{9} \hat j + \frac{8}{9} \hat k\)
2
\(\frac{1}{9} \hat i + \frac{4}{9} \hat j + \frac{8}{9} \hat k\)
3
\(\frac{1}{9} \hat i + \frac{4}{9} \hat j - \frac{8}{9} \hat k\)
4
\(\frac{1}{9} \hat i - \frac{4}{9} \hat j - \frac{8}{9} \hat k\)