Solve the equation for solutions in the interval [0°, 360°). Round to the nearest degree.cos2 
= 1
A. {0°}
B. {0°, 45°, 90°, 135°, 180°, 225°, 270°}
C. {0°, 90°, 180°, 270°}
D. {33°, 57°, 123°, 147°, 213°, 237°, 303°, 327°}
Answer: A
Mathematics
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Add or subtract as indicated. Write the answer in simplest form.- 
+ 
A. 
B. - 
C. - 
D. 
Mathematics
Determine if the equation specifies a function with independent variable x. If so, find the domain. If not, find a value of x to which there corresponds more than one value of y.x - y2 = 9
A. A function with domain ? B. Not a function; for example, when x = 10, y = ±1
Mathematics
Write as a radical expression. Simplify if possible.- 811/4
A. -
= -3
B. -
= -12
C. -
= -243
D. -
= -36
Mathematics
Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics