Q. Express z1=0+10i in polar form.Express your answer in exact terms, using degrees, where your angle is between 0∘ and 360∘, inclusive.z1=
Calculate Magnitude: To express a complex number in polar form, we need to find its magnitude r and angle θ in degrees. The magnitude is the distance from the origin to the point in the complex plane, which can be calculated using the Pythagorean theorem.Calculation: r=Re(z1)2+Im(z1)2=02+102=100=10
Find Angle: Next, we need to find the angle θ. For a complex number a+bi, the angle θ is given by θ=arctan(ab). However, since the real part (a) is 0, we need to determine the angle based on the sign of the imaginary part (b). Since b is positive and a is 0, the angle θ is a+bi1 degrees, which is the angle for the positive imaginary axis.Calculation: a+bi2 (since we are directly above the origin on the imaginary axis)
Express in Polar Form: Now we can express the complex number z1 in polar form. The polar form is given by z=r(cos(θ)+isin(θ)), where r is the magnitude and θ is the angle.Calculation: z1=10(cos(90°)+isin(90°))
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