Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Add or subtract. Express the answer as a mixed number.
A. 7
B. 6
C. 8
D. 7
Mathematics
Determine whether the statement is true or false.cos 135° = cos 225° cos 90° + sin 225° sin 90°
A. True B. False
Mathematics
Verify the identity.cot ? ? sec ? = csc ?
What will be an ideal response?
Mathematics
Solve the problem.Find cos (?), given that sin (?) = 
and cos (?) < 0.
A. 
B. - 
C. - 
D. 
Mathematics