Two eual forces act at a point. The squard of their resultant is ` 3 ` times their product, Find the angle between them.

Explanation

To solve the problem, we need to find the angle between two equal forces given that the square of their resultant is three times their product. Let's denote the equal forces as \( F_1 \) and \( F_2 \), both equal to \( x \).

### Step 1: Write the expression for the resultant of two forces
The resultant \( R \) of two forces \( F_1 \) and \( F_2 \) acting at an angle \( \theta \) is given by the formula:
\[ R = \sqrt{F_1^2 + F_2^2 + 2F_1F_2 \cos \theta} \]

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