Discover new information and insights with the help of IDNLearn.com. Discover trustworthy solutions to your questions quickly and accurately with help from our dedicated community of experts.

Which of the following represents the measures of all angles coterminal with a [tex]\(-220^{\circ}\)[/tex] angle?

A. [tex]\(360 + 140n\)[/tex], for any whole number [tex]\(n\)[/tex]
B. [tex]\(360 + 140n\)[/tex], for any integer [tex]\(n\)[/tex]
C. [tex]\(140 + 360n\)[/tex], for any whole number [tex]\(n\)[/tex]
D. [tex]\(140 + 360n\)[/tex], for any integer [tex]\(n\)[/tex]


Sagot :

To determine the measures of all angles coterminal with a [tex]\(-220^\circ\)[/tex] angle, we need to understand the concept of coterminal angles. Coterminal angles share the same initial and terminal sides but may differ by multiples of [tex]\(360^\circ\)[/tex] since [tex]\(360^\circ\)[/tex] represents a full rotation.

Here's a step-by-step solution to find the answer:

1. Find a positive coterminal angle for [tex]\(-220^\circ\)[/tex]:

We can find a positive coterminal angle by adding [tex]\(360^\circ\)[/tex] (one full rotation) to [tex]\(-220^\circ\)[/tex]:
[tex]\[ -220^\circ + 360^\circ = 140^\circ \][/tex]
So, [tex]\(140^\circ\)[/tex] is a positive coterminal angle for [tex]\(-220^\circ\)[/tex].

2. Generalize the coterminal angles:

To find all coterminal angles, we add integer multiples of [tex]\(360^\circ\)[/tex] to the [tex]\(140^\circ\)[/tex]:
[tex]\[ \theta = 140^\circ + 360n \][/tex]
where [tex]\(n\)[/tex] is an integer ([tex]\(n\)[/tex] can be positive, negative, or zero).

3. Identify the correct representation:

The correct representation should include all integer multiples of [tex]\(360^\circ\)[/tex].

Therefore, the measure of all angles coterminal with [tex]\(-220^\circ\)[/tex] is correctly represented by:
[tex]\[ 140 + 360n \text{, for any integer } n \][/tex]

So the correct answer is:
[tex]\[ \boxed{140 + 360n \text{, for any integer } n} \][/tex]