Solve.Given that sin ? = 0.4136 and that ? is in quadrant I, find cos 
.
A. cos 
= 0.9774
B. cos 
= 1.0751
C. cos 
= 0.8796
D. cos 
= -1.857
Answer: A
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Represent the shaded area in the figure group with an improper fraction.
A. 
B. 
C. 
D. 
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