If $\dfrac{\cos A - \sin A}{\cos A + \sin A} = \dfrac{1 - \sqrt{3}}{1 + \sqrt{3}}$, then $A = ?$

Question

Accepted Answer

$60^\circ$

Answer

$30^\circ$

Answer

$45^\circ$

Answer

$75^\circ$

If cos⁡A−sin⁡Acos⁡A+sin⁡A=1−31+3\dfrac{\cos A - \sin A}{\cos A + \sin A} = \dfrac{1 - \sqrt{3}}{1 + \sqrt{3}}cosA+sinAcosA−sinA​=1+3​1−3, then A=?A = ?A=?