Modulus and argument

Find the mod z and argument z if z=i

Correct answer:

m =  1
a =  1.5708

Step-by-step explanation:

z=i m = z  = Re2 z + Im2 z m=02+12=1
a = arg z a = arctanRe  zIm   z  = arctan01 a=π/2=3.1416/2=1.5708



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You need to know the following knowledge to solve this word math problem:

arithmeticplanimetricsnumbersgoniometry and trigonometryUnits of physical quantitiesGrade of the word problem

 
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