SOLUTION: If{{{i=sqrt(-1)}}}, which of the following is equal to {{{(1-i^2)/(i)}}}? A)-i B)i+2 C)-2i D)i+1

Algebra ->  Inequalities -> SOLUTION: If{{{i=sqrt(-1)}}}, which of the following is equal to {{{(1-i^2)/(i)}}}? A)-i B)i+2 C)-2i D)i+1      Log On


   

Question 1041229: Ifi=sqrt%28-1%29, which of the following is equal to %281-i%5E2%29%2F%28i%29?
A)-i
B)i+2
C)-2i
D)i+1
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
(1-i^2)/i
multiply top and bottom by i
numerator is i-i^3
denominator is i^2= -1
i^3=i^2*i or -1*i or -i
i-(-i)=2i
that is divided by -1
the answer is -2i or C