Solve for the angle ?, where 0 ? ? ? 2?cos2? = 
A. ? = 
, 
, 
, 
B. ? = 
, 
, 
, 
C. ? = 0, ?, 2?
D. ? = 
, 
, 
, 
Answer: A
Mathematics
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Graph the function on the indicated interval.y = 2 cos (?x) + 3 sin (?x), 0 ? x ? 2 
A. 
B. 
C. 
D. 
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Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.-(-4)-1
A. -4
B. 
C. 4
D. - 
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Convert.4 dekameters to decimeters
A. 0.004 decimeters B. 4,000 decimeters C. 0.04 decimeters D. 400 decimeters
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