Practice problem
Find an angle θ\thetaθ with 0<θ<360∘0<\theta<360^{\circ}0<θ<360∘ or 0<θ<2π0<\theta<2\pi0<θ<2π that has the same cosine value as 15∘15^{\circ}15∘
0.966
-0.966
0.259
-0.259
Type a concept, like “slope” or “photosynthesis”.