= Find the inverse Z transform: z2 – 3z F(z) z² – 3z – 10 -

A Phasor is a complex number. There are three forms to present a complex number, namely, the exponential form, the polar form, and the rectangular form. 1. The exponential form is Ae 2. The polar form is AZ. This form is the simplified version of the exponential form, which is commonly used in practice questions to represent a phasor. 3. The rectangular form is a + bj. This form is a classical representation of a complex number. We can transform between polar and rectangular forms for complex numbers. Polar form to rectangular form (i.e., A and are known, we want to find a and b): a = A cos o, b = A sin o. Rectangular form to polar form (i.e., a and b are known, we want to find A and o): A = √a² + b², ¢ = arctan . (If a is negative, & value needs to be adjusted by 180 degree.) a What is the correct rectangular form of 10/90°? O 10j 10 O-10j O-10

What is the inverse of DFT coefficients matrix of:

Find the open circuit voltage between terminals a & b. 160 m 120° 100/0° V Select one: O Vab 402 -156.25238.75⁰ j8Q2 b. Vab125238.75⁰ O Vab156.252-38.75° Od Vab1252-38.75° a