Combine like terms.6c2d2 + 2c2d3 - c2d2 - 5c3d2 - 5c2d3
A. 5c4d4 - 3c4d6 - 5c3d2
B. 5c2d2 - 3c2d3 - 5c3d2
C. 7c2d2 - 10c3d2
D. 5c2d2 - 8c2d3
Answer: B
Mathematics
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cos 
- cos 
sin 
A. 1
B. 
C. 
D. 
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