The integral (1/2π) ∫ from 0 to 2π of sin(t - τ) cos τ dτ equals to
- A. sin t cos t
- B. 0
- C. (1/2) cos t
- D. (1/2) sin t
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The integral (1/2π) ∫ from 0 to 2π of sin(t - τ) cos τ dτ equals to
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