What is the real number of "a" equals to? What is the real number of "b" equals to?
+1084 First, we need to "rationalize" the denominator, but instead of square roots, we use 8i.
-1 - 4i / 8i (8i / 8i)
This is:
-1 - 4i / 8i (8i / 8i) = -1 - 4i ( 8i ) / 8i ( 8i) = - 1 - 4i ( 8i ) / - 8 = - 8i + 32 / - 8 = -8i / -8 + 32 / -8 = -4 + i
Now you should very well know what a and b are.
:)
