Express the product as a sum containing only sines or cosines.-2 sin(5?) sin ?
A. cos(6?) + cos(4?)
B. cos(6?) - cos(4?)
C. cos(7?) - cos(3?)
D. cos(7?) + cos(3?)
Answer: B
Mathematics
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Write the expression in lowest terms.
A. 1
B. - 
C. 
D. -1
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Solve the equation.21 = 3x - 3
A. -8 B. - 6 C. 6 D. 8
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Use transformations to graph the function.f(x) = 4
- 5
A. 
B. 
C. 
D. 
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Solve the rational equation graphically. Approximate your answer to the nearest hundredth if appropriate.
+ 
= 1
A. 3 B. 2, -3 C. -2, 3 D. 2
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