Simplify the complex number and write it in standard form.
?
?
A. 185,193i
B. -57i
C. -
i
D. 
i
E. -185,193i
Answer: C
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Find the exact values of the remaining trigonometric functions of ? from the given information.sin ? = - 
, ? in quadrant III
A. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
C. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 
Use the following figure. Lines m and n are parallel. State whether the given pair of angles is congruent or supplementary and explain why.
?5 and ?6
A. supplementary; They are consecutive interior angles. B. supplementary; They form a straight angle. C. congruent; They are vertical angles. D. congruent; They are corresponding angles.
Perform the operations and simplify.
A. 
B. 
C. 
D. 
E. 