Solving cos(θ)=1 and cos(θ)=-1 | Solving basic sinusoidal equations | Khan Academy
im learning this myself and this is what i have so far. "y" is taken as the equal to cos(theta) because that is what you are measuring. remember the "x" axis is actually the "theta" axis. you you are graphing where cos(theta) is when theta is at a specifi...