Skip to main content
Ch. 1 - Trigonometric Functions
Lial - Trigonometry 12th Edition
Lial12th EditionTrigonometryISBN: 9780136552161, 9780135440780, 9780136881117, 9780135440827, 9780135924891Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoLial 12th EditionCh. 1 - Trigonometric FunctionsProblema 84
Capitolo 2, Problema 84

Find the angle of least positive measure (not equal to the given measure) that is coterminal with each angle. ―203° 20'

Guida verificata passo dopo passo
1
First, understand that coterminal angles differ by full rotations of 360°. To find an angle coterminal with the given angle, you add or subtract multiples of 360°.
Convert the given angle from degrees and minutes to a decimal degree format for easier calculation. Recall that 1 minute = 1/60 degrees, so convert 20' to degrees by calculating \(20 \div 60\).
Express the given angle as a decimal: \(-203° - \frac{20}{60}° = -203.3333°\) (approximately).
To find the least positive coterminal angle, add 360° to the given angle: \(-203.3333° + 360°\).
If the result is still negative or zero, continue adding 360° until the angle is positive and less than 360°. This final positive angle is the least positive coterminal angle different from the original.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Coterminal Angles

Coterminal angles are angles that share the same initial and terminal sides but differ by full rotations of 360°. To find coterminal angles, you add or subtract multiples of 360° from the given angle. This concept helps identify angles that have the same position on the unit circle.
Video consigliato:
Percorso guidato
04:46
Coterminal Angles

Converting Between Degrees and Minutes

Angles expressed in degrees and minutes require understanding that 1 degree equals 60 minutes. When performing arithmetic operations, convert minutes to decimal degrees or handle minutes separately to maintain accuracy. This is essential for precise calculations involving angles given in degrees and minutes.
Video consigliato:
Percorso guidato
5:04
Converting between Degrees & Radians

Finding the Least Positive Coterminal Angle

The least positive coterminal angle is the smallest positive angle greater than 0° that is coterminal with the given angle. To find it, add 360° repeatedly until the angle is positive and less than 360°, ensuring it is not equal to the original angle. This process locates the equivalent angle within the standard 0° to 360° range.
Video consigliato:
Percorso guidato
04:46
Coterminal Angles
Pratica correlata
Domanda del libro di testo

Give all six trigonometric function values for each angle θ. Rationalize denominators when applicable. See Examples 5–7.

csc θ = ―3 , and cos θ > 0

685
views
Domanda del libro di testo

Find the angle of least positive measure (not equal to the given measure) that is coterminal with each angle. ―541°

612
views
Domanda del libro di testo

Use trigonometric function values of quadrantal angles to evaluate each expression. 3 sec 180° ― 5 tan 360°

597
views
Domanda del libro di testo

Find the angle of least positive measure (not equal to the given measure) that is coterminal with each angle. See Example 5. 541°

676
views
Domanda del libro di testo

Find the angle of least positive measure (not equal to the given measure) that is coterminal with each angle. See Example 5. 26° 30'

873
views
Domanda del libro di testo

Give all six trigonometric function values for each angle θ. Rationalize denominators when applicable. See Examples 5–7.

cos θ = 1

698
views