If $zin S^1,zinmathbb{C}$ is then $zbar{z}^{-1}= z^2$












-1














$S^1$ denotes the unit circle.



I would appreciate a hint how I can start the proof and I'd like to know whether the statment is true.



Thank you very much.










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  • Have you worked out the conjugate of $z$, knowing that it lies on the circle?
    – Randall
    Nov 29 at 15:21










  • Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
    – Pedro Tamaroff
    Nov 29 at 15:21






  • 1




    This question is related to your previous one. Just set $a^2+b^2=1$.
    – Shubham Johri
    Nov 29 at 15:25
















-1














$S^1$ denotes the unit circle.



I would appreciate a hint how I can start the proof and I'd like to know whether the statment is true.



Thank you very much.










share|cite|improve this question
























  • Have you worked out the conjugate of $z$, knowing that it lies on the circle?
    – Randall
    Nov 29 at 15:21










  • Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
    – Pedro Tamaroff
    Nov 29 at 15:21






  • 1




    This question is related to your previous one. Just set $a^2+b^2=1$.
    – Shubham Johri
    Nov 29 at 15:25














-1












-1








-1







$S^1$ denotes the unit circle.



I would appreciate a hint how I can start the proof and I'd like to know whether the statment is true.



Thank you very much.










share|cite|improve this question















$S^1$ denotes the unit circle.



I would appreciate a hint how I can start the proof and I'd like to know whether the statment is true.



Thank you very much.







complex-numbers






share|cite|improve this question















share|cite|improve this question













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share|cite|improve this question








edited Nov 29 at 15:21









Pedro Tamaroff

95.9k10150295




95.9k10150295










asked Nov 29 at 15:18









RM777

1928




1928












  • Have you worked out the conjugate of $z$, knowing that it lies on the circle?
    – Randall
    Nov 29 at 15:21










  • Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
    – Pedro Tamaroff
    Nov 29 at 15:21






  • 1




    This question is related to your previous one. Just set $a^2+b^2=1$.
    – Shubham Johri
    Nov 29 at 15:25


















  • Have you worked out the conjugate of $z$, knowing that it lies on the circle?
    – Randall
    Nov 29 at 15:21










  • Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
    – Pedro Tamaroff
    Nov 29 at 15:21






  • 1




    This question is related to your previous one. Just set $a^2+b^2=1$.
    – Shubham Johri
    Nov 29 at 15:25
















Have you worked out the conjugate of $z$, knowing that it lies on the circle?
– Randall
Nov 29 at 15:21




Have you worked out the conjugate of $z$, knowing that it lies on the circle?
– Randall
Nov 29 at 15:21












Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
– Pedro Tamaroff
Nov 29 at 15:21




Recall that for any complex number $z$ which is nonzero, $z^{-1} = bar z/|z|^2$.
– Pedro Tamaroff
Nov 29 at 15:21




1




1




This question is related to your previous one. Just set $a^2+b^2=1$.
– Shubham Johri
Nov 29 at 15:25




This question is related to your previous one. Just set $a^2+b^2=1$.
– Shubham Johri
Nov 29 at 15:25















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