Evaluate the integral.
dt
A. 
sin 
t - 
sin 
t + C
B. 
sin 
t - 
sin 
t + C
C. 
cos 
t + 
cos 
t + C
D. 
sin t - 
sin 7t + C
Answer: A
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A. 
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B. cos 4x
C. cos 8x
D. 2 sin 4x
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