Find the area.Find the area enclosed by the ellipse x = 6 cos t, y = 5 sin t, 0 ? t ? 2?.
A. 36?2 + 25?
B. 30?2
C. 60?
D. 30?
Answer: D
Mathematics
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Use a power-reducing identity to find the exact value of the expression.csc2 (-157.5°)
A. 
B. 4 + 2
C. 8 + 4
D. 4
Mathematics
Solve the problem.For what positive numbers will the cube of a number exceed 3 times its square?
A. x|0 < x < 3} B. {x|x > 3} C. x|x > 9} D. x|0 < x < 9}
Mathematics
Simplify.
A. 13 B. 84 C. 14 D. Not a real number
Mathematics
Divide.
÷ 
A. - 
B. 
C. 
D. - 
Mathematics