1)12*(- 3V3) *(-1/2)
2)6V6 * V2/2 *(-V3/3)= 18
3) 8*(-1)* 1/2=-4
4)8*V3*(-V3/3)=-8
5)8*(-V3/3) * V3/3 *1=-8/3
6)(44*sin44' * cos44')/sin88' = (22*2 * sin44' * cos44')/sin88' = 22 * sin88'/sin88' = 22
7) (4 * cos(-33'))/sin(-57) = (4 * cos(-33'))/cos(-33') = 4
9)
10)(cos^2 44'+cos^2 46') / 2 =(cos^2 44'+sin^2 44')/2=1/2
8)12*1/2=6