Hi dear, would you please help with a couple of short answer questions. please count them as one as the questions are short answer, i highly appriciate your help dear. these are for rade 12 advanced functions, not calculus

1. Express as a simple trig function of the angle x. a) tank + X b) sin(7x + x) c) csc(-x) 2 tan 67" - tan 7" 2. Give the exact value of 1 + tan 67' tan 7" 3. If tan(x) = 0.5, give an exact value for tan(2x) 4. Give a simplified trig expression for the following. a) cos(a + 2b) cos(2a + b) + sin(a + 2b) sin(2a + b) b) sin 13cos 25- sin 25 cos 13 c) cos' x - 1 d) (cos 22.5 + sin 22.5)(cos 22.5 - sin 22.5) V3 5. Evaluate the following. (Two answers) COS X = - 0