Use a Sum or Difference Identity to Find the Exact $\cos 34 ^ { \circ } \sin 25 ^ { \circ }$

question 30

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\cos 34 ^ { \circ } \sin 25 ^ { \circ }$

• A) \(\frac { 1 } { 2 } \left( \cos 59 ^ { \circ } + \cos 9 ^ { \circ } \right)\)
• B) \(\frac { 1 } { 2 } \left( \sin 59 ^ { \circ } - \sin 9 ^ { \circ } \right)\)
• C) \(\frac { 1 } { 2 } \left( \sin 59 ^ { \circ } + \sin 9 ^ { \circ } \right)\)
• D) \(\frac { 1 } { 2 } \left( \cos 59 ^ { \circ } - \cos 9 ^ { \circ } \right)\)

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