QUESTION 2 2.1 Given the complex number z=3 z=3-j. 2.1.1 Show z on an Argand diagram. (2) 2.1.2 Rewrite z in polar form. (3) 2.1.3 Find zº (2) 2.2 The total impedance of an AC circuit containing two impedances Z₁ and Z2 in parallel is given by Z=_Z₁Z₂ Z₁ + Z₂ Find Zwhen Z₁ = 2-jand Z₂ = 3 + j. (5) 2.3 Identify the following curves and rewrite the equations in standard form: 2.3.1 4x² - y² = 16 (2) 2.3.2 2x²-8x + y² + 6y +15=0 (4) [191