At what angle the two force `overset(rarr)A+overset(rarr)B` and `overset(rarr)A-overset(rarr)B` act so that their resultant is `sqrt(3A^(2)+B^(2))` ?

Explanation

To find the angle at which the two forces \( \vec{A} + \vec{B} \) and \( \vec{A} - \vec{B} \) act such that their resultant is \( \sqrt{3A^2 + B^2} \), we can follow these steps:

### Step 1: Write the expression for the resultant of two vectors
The resultant \( R \) of two vectors \( \vec{V_1} \) and \( \vec{V_2} \) can be expressed as:
\[ R = \sqrt{V_1^2 + V_2^2 + 2V_1V_2 \cos \theta} \]
where \( \theta \) is the angle between the two vectors.
...