Assignment:
Q1. Find the exact value of the following expressions given that sec(x) = 3/2, csc(y) = 3 and x and y are in quadrant I.
a) cost(x - y)
b) sin(2y)
c) tan(y/2)
Q2. Write the following expressions in terms of sin only:
a) sin(x) + cos(x)
b) 3sin(pi*x) + 3*sqrt(3)*cos(pi*x)
Provide complete and step by step solution for the question and show calculations and use formulas.