Chapter 13.7, Problem 7OE

To determine

To write: The given each angle as a sum or difference of multiples of $30°,45°,\text{or}\text{60}°$ .

Answer to Problem 7OE

The given angle can be written as a sum of the $60°\&45°$ .

Explanation of Solution

Given:

The given angle is as:

  $105°$ .

As $60°\&45°$ are multiples of $60°\&45°$ .

So the given angle can be written as a sum of the following two angles:

  $105 °=60°+45°$ .

Therefore the given angle can be written as a sum of the $60°\&45°$ .