Find all values of ? in [0°, 360°) that satisfy the equation.tan ? = 1
A. {225°, 315°}
B. {135°, 225°}
C. {45°, 315°}
D. {45°, 225°}
Answer: D
Mathematics
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Divide and simplify. Assume variables do not cause any denominators to equal 0.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
Mathematics
Use a number line to find the sum.6 + (-9)
A. -3 B. 3 C. -15 D. 15
Mathematics
Solve.For the geometric sequence 2, 1, 
, 
, ... , find an.
A. an = 2n-2
B. an = 
n-2
C. an = 21-n
D. an = 
1-n
Mathematics