Q16 of 29 Page 5

Write the complex number in the polar form.

Let ,









= - 1 + i


r = |z|



= √2


Let α be the acute angle given by,




= 1


⇒ α = π /4


As the point ( - 1,1) lies in the II quadrant.


∴ θ = arg(z) = π - α




Hence polar form is:



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