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May13-08, 12:43 PM
P: 4
The usual method of Q1. is to multiply each fraction by the conjugate of the denominator in order to give it a real denominator... but can you please show me one solution so that I make sure?

For 2. To use the fact that i^2n = -1

For 3, To show that the distances between each point on the complex plane are equal.. but how?

On Q4, No idea

Q5 No idea