Assignment:
Given that x = 3sin theta and y = 4cos theta,express x + y in the form R sin (theta + alpha) giving alpha in radians correct to 4 decimal places and hence solve the equation, 3sin theta + 4cos theta =1.2 giving your answers in radians in the range -Pi to +Pi
Provide complete and step by step solution for the question and show calculations and use formulas.