CUET and UG exam JEE Main Mock Test Series 2025 Physics Vectors Multiplication of vectors

If \(\rm \vec {a} = 2\widehat i - 3\widehat j +\widehat k\)  and  \(\rm \vec {b} = 3\widehat i + \widehat j -2\widehat k\) the cosine of angle θ between them is equal to :

1
\(\frac{5}{14}\)
2
\(\frac{1}{7}\)
3
\(\frac{3}{14}\)
4
\(\frac{1}{14}\)
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