Part II
Answer all questions in this part. Each correct answer will receive 2 credits. Clearly indicate the
necessary steps, including appropriate formula substitutions, diagrams, graphs, charts, etc. For all
questions in this part, a correct numerical answer with no work shown will receive only 1 credit. [
]
12
2
21 The complex number c + di is equal to (2 + i)
. What is the value
of c?
[7]
[OVER]
Math. B – Aug. ’06