Thursday
April 24, 2014

Homework Help: complex numbers and imaginary units

Posted by candace on Wednesday, May 23, 2007 at 11:10am.

2i/1+i

your question probably says 'simplify'

multiply top and bottom by (1-i)\(1-i) and remember that i^2 =-1

so...

2i/(1+i) * (1-i)\(1-i)
= (2i - 2i^2)/(1-i^2)
= 2(i-i^2)/(1+1)
=i+1

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra 2 - When dealing with imaginary and complex numbers, are there 2 ...
algebra2-imaginary numbers - You can add or subtract complex numbers by treating...
math help people lik really desperate!! - ok i have to divide complex numbers: ...
check my work please! - ok i have to divide complex numbers: question is: 1-2i+i...
Math - We have to simplify complex numbers and I was wondering whether I did ...
can someone please help me? - simplify the following expressions involving ...
Algebra - I have to rationalize the denominator of 2+3i/1+2i. I multiplyed this ...
Algebra - Multiply. x-(6+2i)][x-(6-2i)] Note that these expressions contain ...
PreCal - Find all real numbers x and y -2x-4-2yi=3x-2i 5x+2yi=-4+2i 5x=-4 so x=-...
Algebra - I am trying to find the real coefficients of the given roots. Did I do...

Search
Members