Sample Sample Problems (3)

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Converting Complex Numbers From Trigonometric Form to Rectangular - Problem 1
Problem 1
How to convert a complex number, z = 2*root(3)*(cos(5*pi/6) + i*sin(5*pi/6)), from trigonometric form to rectangular form.
Converting Complex Numbers From Trigonometric Form to Rectangular - Problem 2
Problem 2
How to convert a complex number, z = 5*root(2)*(cos(7*pi/4) + i*sin(7*pi/4)), from trigonometric form to rectangular form.
Converting Complex Numbers From Trigonometric Form to Rectangular - Problem 3
Problem 3
How to convert a complex number, z = 8(cos(3*pi/2) + i*sin(3*pi/2)), from trigonometric form to rectangular form.