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Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
(9+7i^18)/(4-i)
The complex expression above is equivalent to the expression a+bi for the rational constants a and b. What is the value of b?
(Note: i=√-1)
A.b=2/15
B.b=2/17
C.b=8/17
D.b=16/17
