I feel a little stupid with this one, but...
z = a + bi and z` = a - bi
the conjugate of z is supposed to have a little line over the z instead, but whatever.
1. Find a general expression for 1/z.
I don't really get what they are looking for. It's a even numbered problem so the answer isn't in the back. What is a general expression supposed to be? Is it:
(a - bi)/(a^2 + b^2) ?
2. Solve z + 6z` = 7 for z.
Again, even numbered problem, but I'm guessing they don't want z = 7 - 6z` but I'm not quite sure how to proceed.
Thanks for any help.
z = a + bi and z` = a - bi
the conjugate of z is supposed to have a little line over the z instead, but whatever.
1. Find a general expression for 1/z.
I don't really get what they are looking for. It's a even numbered problem so the answer isn't in the back. What is a general expression supposed to be? Is it:
(a - bi)/(a^2 + b^2) ?
2. Solve z + 6z` = 7 for z.
Again, even numbered problem, but I'm guessing they don't want z = 7 - 6z` but I'm not quite sure how to proceed.
Thanks for any help.