Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.A box has dimensions 2" × 3" × 4". (See illustration.) 
Determine the angle ? formed by the diagonal of the 2" × 3" side and the diagonal of the 3" × 4" side. Round your answer to the nearest degree.
A. 65° B. 60° C. 62° D. 50°
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Write the sum or difference as a product containing only sines and/or cosines.sin(10?) - sin(4?)
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