Problem 1.1:
Solve the following equation:
sin(x)tan(x) = 0.
Problem 1.2:
Solve the following equation:
cos(x) - tan2(x) = 1.
Problem 1.3:
Solve the following equation:
sin2(x) - 1 = cos2(x) + 2.
Problem 1.4:
Solve the following equation:
2 sec(x)sin3(x) =
cos(x)tan2(x).
Problem 1.5:
Solve the following equation:
sin(x) + sin(x)cot2(x) = sec2(x) - tan2(x).