Sue Pemberton Solutions for Chapter: Trigonometry, Exercise 5: EXPLORE 5.3

By considering the shape of the cosine curve, complete the following statements, giving your answers in terms of $\cos x$ : $\cos \left(-x\right)$.

By considering the shape of the cosine curve, complete the following statements, giving your answers in terms of $\cos x$ : $\cos \left(180°-x\right)$.

By considering the shape of the cosine curve, complete the following statements, giving your answers in terms of $\cos x$ : $\cos \left(180°+x\right)$.

By considering the shape of the cosine curve, complete the following statements, giving your answers in terms of $\cos x$ : $\cos \left(360°-x\right)$.

By considering the shape of the cosine curve, complete the following statements, giving your answers in terms of $\cos x$ : $\cos \left(360°+x\right)$.