Solve.20x - 20 > 4(4x + 4)
A. (20, ?)
B. (-?, 9)
C. (-?, 20)
D. (9, ?)
Answer: D
Mathematics
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A. -1 B. 41 C. 1 D. -41
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Find all real numbers ? in [0, 2?] satisfying the condition. cos ? = 1
A. ? = ?
B. ? = -?
C. ? = 0
D. ? = 
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