Solve the problem.What is the domain of the cosine function?
A. all real numbers, except odd multiples of 
(90°)
B. all real numbers, except integral multiples of ? (180°)
C. all real numbers from -1 to 1, inclusive
D. all real numbers
Answer: D
Mathematics
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Identify the type of surface represented by the given equation.
- 
= 
A. Parabolic cylinder
B. Paraboloid
C. Hyperbolic paraboloid
D.
| Ellipsoid |
Mathematics
Solve the equation.log9 (x - 2) + log9 (x - 2) = 1
A. -5, 5
B. 5
C. - 
, 
D. 
Mathematics
Find the domain of the function.g(x) = 
A. all real numbers B. {x|x > 16} C. {x|x ? 0} D. {x|x ? -4, 4}
Mathematics
Find the decimal equivalent of the fraction.
A. 0.125 B. 0.215 C. 0.015 D. 0.115
Mathematics