solve the equation
cos α =1/2
for all 0 ≤ α ≤ 2π.
(y+5)^2
-17+2*5-9/(-3)=
48-50
(3c+4)(2c+5)
284sin(20) = -82.39sin(36.9)*W + V*sin(36.9)
-284cos(20) = 82.39cos(36.9)*W + V*cos(36.9)
32-14*(-3)=
〖2.3〗^(2x+1)=54
(x-3)(4x+9)
9-4*5+6/2=
-562
