Find an acute angle `theta` , when `(costheta-sintheta)/(costheta+sintheta)=(1-sqrt(3))/(1+sqrt(3))`

Explanation

To solve the equation \(\frac{\cos \theta - \sin \theta}{\cos \theta + \sin \theta} = \frac{1 - \sqrt{3}}{1 + \sqrt{3}}\), we will follow these steps:

### Step 1: Cross-multiply the equation
We start by cross-multiplying the fractions to eliminate the denominators:
\[ (\cos \theta - \sin \theta)(1 + \sqrt{3}) = (1 - \sqrt{3})(\cos \theta + \sin \theta) \]

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