tane−π4\tan e-\frac{\pi}{4}tane−4π
tan−1e−π4\tan ^{-1} \mathrm{e}-\frac{\pi}{4}tan−1e−4π
tan−1e+π4\tan ^{-1} e+\frac{\pi}{4}tan−1e+4π
কোনটিই নয়