### Home > PC3 > Chapter 11 > Lesson 11.2.3 > Problem11-114

11-114.

Write the polar form of each complex number given below. Approximate your values to three decimal places. (Remember to think about the correct quadrant when you determine the value for $θ$).

1. $3 − 4i$

Graph the point.

Draw a right triangle with the $x$-axis.

'$r$' is the length of the hypotenuse of the triangle. Calculate '$r$' by using the Pythagorean Theorem.

Use trigonometry to determine the angle.

1. $−12 − 5i$