## Trigonometry (11th Edition) Clone

26 is matched with B. $$\cos(-55^\circ)=\cos55^\circ$$
$$\cos(-55^\circ)$$ - Negative Angle Identities: $\cos(-\theta)=\cos\theta$ Therefore, $\cos(-55^\circ)=\cos55^\circ$ This corresponds to choice B. So we match 26 with B.