Perform the indicated operation and reduce the answer to lowest terms.
- 
A. - 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Represent the sets on a number line.{x|x ? 4}
A. 
B. 
C. 
D. 
Mathematics
Find all solutions of the equation in the interval [0°, 360°). Round the answers to the nearest tenth of a degree.cos ? = 0.5
A. {60.0°, 300.0°} B. {60.0°, 240.0°} C. {60.0°, 120.0°} D. {60.0°}
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 165°
A. 
B. - 
C. 
D. - 
Mathematics
Solve the equation.x4 - 8x2 - 9 = 0
A. {3i, -3i, i, -i} B. {3, -3, 1, -1} C. {3, -3, i, -i} D. {1, -1, 3i, -3i}
Mathematics