Question

3 tg π / 4 - 3 cos π + sin π / 2 sin π+3cos π/3 + 4sin30° 3cos^2 π/4- 4tg^2 60° (3sin π-6cos π/2)-tg 5π/6

Answer 1

1) = 3 +3 +1 +3/2 + 2 = 10 1/2
2) = 3/2 - 12 ( 0 - 0) - 1/√3