Simplify the complex fraction.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Which of the following are simple closed curves?
(a) A circle. (b) A polygon. (c) A cube. (d) Both (a) and (b) are correct. (e) Both (a) and (c) are correct.
Mathematics
Find all solutions of the equation in the interval [0, 2?).2 cos2 ? - 3 cos ? + 1 = 0
A. 
, 
, 
B. 0, 
, 
C. 0, 
, 
D. 0, 
, 
Mathematics
Graph the function.x = 
y
A. 
B. 
C. 
D. 
Mathematics
Find a system of inequalities with the given graph.
A. y > 2 x ? 1 B. y < 2 x ? 1 C. y > 2 x ? 1 D. y > 1 x ? 2
Mathematics