虛數討論地帶 ^^歡迎高手教路

p445hkk20001

我認為 無錯@@''
(1/sqrt(2)+i/sqrt(2))^2=i

-終場ソ使者-

呢個係冇錯,但因為佢而推出sqrt(i)=1/sqrt(2)+i/sqrt(2)就有問題姐-.-

p445hkk20001

我都認為無錯
你可唔可以證到大錯?

[H]bunbunbunbun

e^[iπ] = -1
Thus
e^(iπ/4) = (-1)^(1/4)=sqrt(i)
= cos(π/4+2kπ)+i sin(π/4+2kπ)(k is integer)

was one of the interview questions from Oxbridge