Test the correctness of a trigonometric identity using de Moivre's Theorem WW'W (a) Express the following mathematical model of a sinusoidal oscillation X:R sin(1000t - (b) in complex exponential form, given the values of R and CD shown in table DATA TASK 1.7(a) DATA TASK 1.7(a) NAMES -E--- (b) Find a formula for cos(46) in terms of (305(9) and a formula for sin(46) in terms of sin(8) using de mm theorem