C-09-Q182: If $A = 45^\circ$, $\dfrac{1 - \tan^2 A}{1 + \tan^2 A} = ?$

C-09-Q182: If $A = 45^\circ$, $\dfrac{1 - \tan^2 A}{1 + \tan^2 A} = ?$ | প্রশ্ন করি

\frac{1}{2}

\dfrac{1}{2}

If A=45∘A = 45^\circA=45∘, 1−tan⁡2A1+tan⁡2A=?\dfrac{1 - \tan^2 A}{1 + \tan^2 A} = ?1+tan2A1−tan2A​=?