Multiple ChoiceFind all solutions to the equation.(cosθ+sinθ)(cosθ−sinθ)=−12\left(\cos\theta+\sin\theta\right)\left(\cos\theta-\sin\theta\right)=-\frac12(cosθ+sinθ)(cosθ−sinθ)=−2134viewsHas a video solution.
Multiple ChoiceFind all solutions to the equation where 0 ≤ θ\thetaθ ≤ 2π2\pi2π.sinθcos(2θ)−sin(2θ)cosθ=22\sin\theta\cos\left(2\theta\right)-\sin\left(2\theta\right)\cos\theta=\frac{\sqrt2}{2}sinθcos(2θ)−sin(2θ)cosθ=2231viewsHas a video solution.