Standard1.3b-DR

===Standard 1 3(b): ​ __Adding, Subtracting, Multiplying ,and Dividing Expressions Involving Complex__ __Numbers__ .=== The following page is further explanation of adding, subtracting, multiplying, and dividing. It helps with steps ,such as When you add or subtract two complex numbers together, you add or subtract the real number parts together, then add or subtract their imaginary parts together and write it as a complex number in standard form.

Example Problems for Standard 1.3b
Below are two example problems. They range from easy to difficult. // A + B = // (1 + 3) + (2 - 4) // i // // = // 4 - 2//i// **
 * Problem 1-Easy**
 * if //A =// 1 //+// 2 // i //, and //B =// 3 - 4 // i //, then:

If 'A' and 'B' are two complex numbers, so that: // A = a + b**i** and B = c + d // **//i//** Then we can sum A and B like this: //=// (//a + c//) //+// (//b + d//)**//i//**

Find //x// and //y// in //3x + yi = 5x + 1 + 2i//
 * Problem 2.-Difficult

Solution: ** Using the above definition for equality of complex numbers, set the real parts of the equation equal and set the imaginary parts equal.

//-2x = 1// //y = 2// //x = -(1/2)//**
 * //3x = 5x + 1// //yi = 2i//

Podcast for Standard 1.3b
Below is a tutorial on complex numbers media type="custom" key="6022967"