Sunday
March 29, 2015

Homework Help: Algebra 2/Trig.

Posted by Tom on Sunday, November 19, 2006 at 7:08pm.

I forgot some stuff from my 7th grade algebra class about complex numbers...like what do you do with a problem like this

5+5i 3-i
divided by + divided by
2-i 4+3i

thanks.(divided by refers to dividing line in a fraction)

In each case, RATIONALIZE the denominator. Here is the way on the first problem. Mulitipy the numerator and the demoniator by 2+1. Isn't that called the complex conjugate? Anyway, that will solve the problem.

Then multiply on the second fraction both top and bottom by the complex conjugate, 4-3i, simplify all, and you are done.

2x squaed plus 27 equal 0

7/8 x 6/7 =

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