I can't remember how to solve this question....And my exam is coming up....Can anyone help?

1.Solve each of the following equations for 0< x < 360

(a) 4 sin x = 3 cos x

(b) 2 tan x cosec x = 3

(c) 5 sin x cos x = sin x

(d) 2 tan^2 x = sec x tan x