જો A = \(\frac{1}{\pi}\left[\begin{array}{cc}\sin ^{−1}(\rm x \pi) & \tan ^{−1}\left(\frac{\rm x}{\pi}\right) \\ \sin ^{−1}\left(\frac{\rm x}{\pi}\right) & \cot ^{−1}(\pi \rm x)\end{array}\right]\), B = \(\frac{1}{\pi}\left[\begin{array}{cc}−\cos ^{−1}(\rm x \pi) & \tan ^{−1}\left(\frac{\rm x}{\pi}\right) \\ \sin ^{−1}\left(\frac{\rm x}{\pi}\right) & −\tan ^{−1}(\pi \rm x)\end{array}\right]\), તો A - B બરાબર શું થાય?