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Mathematics 7 Online
OpenStudy (anonymous):

what is the answer of square root of iota?

hartnn (hartnn):

can you write 'i' in polar (trigonometric ) form ?

OpenStudy (anonymous):

\(\sqrt{\iota}\) ? or \\(\sqrt{i}\) ?

hartnn (hartnn):

i think question is about sqare root of square root of -1

OpenStudy (anonymous):

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hartnn (hartnn):

yes, i = 0+1i = 1 < 90 so its square root will be \(\sqrt 1 < (90/2)=1 <45 = (1/ \sqrt 2) (1+i)\)

OpenStudy (anonymous):

how 1 < 90 ?

hartnn (hartnn):

i = 0+1i =x+iy (x=0,y=1) from rectangular to polar, \(r=\sqrt{x^2+y^2}=1, \theta =arctan(y/x)=90 \\so, r<\theta =1<90\)

OpenStudy (anonymous):

ok now i get it thanks

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