Express the sum or difference as a product of sines and/or cosines.sin(4?) - sin(2?)
A. 2 sin ? cos(3?)
B. sin ? cos(3?)
C. sin(3?) cos ?
D. 2 sin(3?) cos ?
Answer: A
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Find the area of the polygon.
A. A = 290 m2 B. A = 295 m2 C. A = 285 m2 D. A = 67 m2
Provide an appropriate response.Determine whether the statement below is true or false. If it is false, give an explanation. Given a canonical linear programming problem with an optimal solution, if the vector 
is an extreme point of the feasible set, then 
must be an optimal solution.
A. False. 
may not be in the feasible set.
B. True
C. False. Some extreme point is an optimal solution but not every extreme point is an optimal solution.
D. False. Not every optimal solution is an extreme point.
Express the statement as an equation involving the indicated variables.The circumference C of a circle is the product of ? and its diameter d.
A. C = 
B. C = ? + d
C. C = 2?d
D. C = ?d
Reduce the fraction by finding a common factor in the numerator and in the denominator and dividing by the common factor.
A. 
B. 
C. 
D. 