This Cis in math provides step-by-step instructions for solving all math problems.
Learn Math with the best. 1st class free! > X. Topics. Modulus of a complex number; Argument of a complex number; Expression of a number
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Dept. of Math. (MAT021) If one defines cis θ = cos θ + i sin θ, then any complex number may be expressed in the form z = |z| cis θ.