![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The complex number is z = ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0b94265ed649ab956ee96d48d96b617e.png\")
.
Compare the complex number with a + ib.
\a = 0 and b = 12.
\The absolute value of z is :
\ ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7b1c62193a4740ac5763ff2751a26768.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
a = 0 , so the angle is :
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4c2262c886f40cffa601bf8e3d5968c6.png\")
The trigonometric form is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ce991cb7e499487a521c9a1a8d7d8a0c.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=23bac3966745a3a41c4fe8f45f0cbb4e.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
The complex number is plotted as an absolute value of 12.
\![\"The](\"/userfiles/image/Library/Trigonometry/The_complex_number_minus_12_i.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The trigonometric form is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=89b6cff0dc992d777d93533b8a6ac22c.png\")
.