Simplify by rationalizing the denominator. Write your answer in a + bi form.
A. 
- 
i
B. 
C. 
+ 
i
D. 
+ 
i
Answer: D
Mathematics
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Find all the complex roots. Write the answer in the indicated form.The complex square roots of 2 (cos 
+ i sin 
) (rectangular form)
A. 
+ 
i, - 
- 
i
B. 
- 
i, - 
+ 
i
C. 6 - 2i, -6 - 2i
D. 
+ 
i, - 
- 
i
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Use the unit circle to determine the value of the given expression or state that it is undefined.tan 
A. 1
B. 
C. 
D. -1
Mathematics
Reduce the rational expression to lowest terms.
A. - 
B. 
C. 
D. 
Mathematics
Use the graph of the function f to solve the inequality.f(x) > 0
A. (6, ?) B. (-?, -3) ? (1, 6) C. [-3, 1] ? [6, ?) D. (-3, 1) ? (6, ?)
Mathematics