hi...

appreciate if anyone can help me with this complex no. question....especially bi)....need detailed explanation!

Ans as follows:

(b) (i) 2.21

(ii) -2 + I , -2 -i

Thank You!

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- Oct 22nd 2006, 02:58 AMshaojie2kComplex No.
hi...

appreciate if anyone can help me with this complex no. question....especially bi)....need detailed explanation!

Ans as follows:

(b) (i) 2.21

(ii) -2 + I , -2 -i

Thank You! - Oct 22nd 2006, 05:05 AMtopsquark
- Oct 22nd 2006, 05:20 AMtopsquark
- Oct 22nd 2006, 08:51 AMtopsquark
i)

I'm having a problem with this. My approach is to write

I got that

The problem is that this function has no minimum:

=

which can never be zero.

Now, looking at the graph of the function you might think that there is a local minimum at , but the function does not exist there.

(I'm going to attempt to upload the graph. Cross your fingers!)

(Yay! It worked! :) )

-Dan - Oct 22nd 2006, 08:58 AMtopsquark