Ap EapcetComplex NumbersAP EAPCET 2024 - 20th May Evening ShiftMCQ+1 / -02024If $z=x+i y, x^2+y^2=1$ and $z_1=z e^{i \theta}$, then $\frac{z_1^{2 n}-1}{z_1^{2 n}+1}=$A$-i \tan \left(n\left(\theta+\tan ^{-1}\left(\frac{y}{x}\right)\right)\right)$B$i \cot \left(n\left(\theta+\tan ^{-1} \frac{y}{x}\right)\right)$C$i \tan \left(n\left(\theta+\tan ^{-1} \frac{x}{u}\right)\right)$D$i \tan \left(n\left(\theta+\tan ^{-1} \frac{y}{x}\right)\right)$Check AnswerClear SelectionReveal AnswerShow Explanation
