Find the exact value.Given that cos ? = - 
with ? in quadrant II, find cos 2?.
A. - 
B. - 
C. 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Find the mode of 5, 30, 24, 27, 12, 21, 10, 12, 18.
A. 25 B. 12 C. 18 D. none of the above
Mathematics
Factor and simplify the expression.tan4x - sec4x
A. sec2x + tan2x B. sec2x C. -2 tan2x - 1 D. tan2 - sec2x
Mathematics
Solve the problem.Trader Tower stands at 2464 feet high. Exchange Emporium is 835 feet tall. How much taller is Trader Tower than Exchange Emporium?
A. -1629 feet B. 3299 feet C. 1629 feet D. -3299 feet
Mathematics
Add.
+ 
A. -32 B. -6 C. -30 D. -24
Mathematics