You suspect have misread the answer you are supposed to get. It should be or either of which is equal to .
You get that by, as you say, multiplying by the conjugate. Then "rationalize the denominator".
I'm dealing with this problem where I'm to write the complex number below on the form a + bi.
I've tried writing it as
Then I tried multiplying by the conjugate, writing it using polar coordinates, considering the squre root as an exponent of 0.5 etc. However, I just kept reaching a dead end. The expression is supposedly equal to
How do I go about?
You suspect have misread the answer you are supposed to get. It should be or either of which is equal to .
You get that by, as you say, multiplying by the conjugate. Then "rationalize the denominator".