Please label the work for each question and show formulas and methods and secondly please if there is any graph must be used please attach it

P3 (Task 4): Solve engineering problem involving geometric progression. On commencing employment, a man's starting salary is $10,000 per annum with annual increments of $350. What will be his salary in the 9th year? If the man is invested half of his 90 year salary at compound interest of 8% per annum, calculate the value after 10 years. P4 (Task 5) Perform the basic operations of multiplication and division to a complex number in both rectangular and polar form. a) Evaluate in Polar form if Z, =1+ j2, Z2 =4- j3, Z3 = -2+ j3 and Z4 = -5- j (Change into Polar form) a) ZZ3 + Z4 Z1 + Z3 b) Zz - ZA b) Evaluate in Cartesian form (Change into Cartesian form) a) 3/20 x152450 c) 5230x4280 = 10Z-40 b ) 2.4 2 650 x 4.42 - 210 M2 (Task 6) Use complex numbers to solve a parallel arrangement of impedances giving the answer in both Cartesian and polar form a) Two impedances, Z1 = (3+ j6 )$2 and Zz = (4 -j3)$ are connected in parallel to a supply voltage of 120 V. Determine the magnitude of the current and its phase angle relative to the voltage both in polar form and Cartesian form. Xc 20 $2 A, 30 52 b) For the circuit shown in the adjacent figure, determine the current I flowing in the circuit and its phase angle relative to the applied 2 4052 XL 50 12 voltage in Cartesian form. Calculate the branch currents in polar form. Ry 25 52 V 200 V Assignments handed in late will meet the Pass criteria only VADA