Use a Sum or Difference Identity to Find the Exact $\cos ( \theta - \pi )$

question 64

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\cos ( \theta - \pi )$

• A) \(\sin \theta\)
• B) \(\cos \theta\)
• C) \(- \cos \theta\)
• D) \(- \sin \theta\)

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