What is the value of sin(180∘+θ)+sin(180∘−θ)\sin(180^\circ + \theta) + \sin(180^\circ - \theta)sin(180∘+θ)+sin(180∘−θ)?
2sin(θ)2\sin(\theta)2sin(θ)
−2sin(θ)-2\sin(\theta)−2sin(θ)
000
2cos(θ)2\cos(\theta)2cos(θ)