Find the angle between two vectors `vec(a)` and `vec(b)` with magnitude 2 and 1 respectively, such that `vec(a).vec( b)= sqrt(3)` ​ .

Explanation

Given
`veca. vecb`= 3
​



`∣ veca∣=2` and `∣ vecb∣=1`


Let `θ` be the angle between
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