GATE Electrical Engineering (EE) 2013 Solved Paper

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Question : 33 of 65

Marks: +1, -0

Square roots of −i , where i = √−1, are

i, -i
$cos (−\;{π\;}/{4}) + i\:sin (−\;{π\;}/{4}) ,cos (\;{3π\;}/{4}) + i\:sin (\;{3π\;}/{4})$
$cos (−\;{π\;}/{4}) + i\:sin (\;{3π\;}/{4}) ,cos (\;{3π\;}/{4}) + i\:sin (\;{π\;}/{4})$
$cos (\;{3π\;}/{4}) + i\:sin (−\;{3π\;}/{4}) ,cos (−\;{3π\;}/{4}) + i\:sin (\;{3π\;}/{4})$

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