Express the product as a sum containing only sines or cosines.sin(2?) cos(3?)
A. 
[sin(5?) - sin ?]
B. 
[cos(5?) + sin ?]
C. sin cos(6?2)
D. 
[cos(5?) - cos ?]
Answer: A
Mathematics
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Evaluate the improper integral.
A. 
B. 
C. 
D. 
Mathematics
Find the additive inverse.0
A. 1
B. 0
C. 
D. Does not exist
Mathematics
Find all the complex solutions of the equation.x2 + 8 = 0
A. 
+ 
i, - 
- 
i
B. 2
i, -2
i
C. 2i, -2i
D. 2 + 2i, -2 - 2i
Mathematics
Find the value of cos 170.5° rounded to four significant digits.
A. 0.5000 B. 0.9863 C. -0.9863 D. -0.4931 E. -0.8863
Mathematics