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11-76.

Use reference angles, the symmetry of a circle, and the knowledge that tan(20°) ≈ 0.3640 to write three other true statements using tangent. Homework Help ✎

180° − θ reflects θ across the y-axis, so tan 160° = −0.3640

360° − θ reflects θ across the x-axis.

θ + 360° reflects θ across both axes.