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 solve the problem of finding 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: Define the vectors
Let:
- \( \vec{P} = \vec{A} + \vec{B} \)
- \( \vec{Q} = \vec{A} - \vec{B} \)

### Step 2: Write the expression for the resultant
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