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MatemáticasMatemáticas80 views·Updated Jun 18, 2026·1 page

¿Qué Son las Funciones Trigonométricas y Cómo Operan en la Circunferencia Unitaria?

user profile picture
yulss@julianamillanfranco_jhd0

¿Te has preguntado cómo funcionan las funciones trigonométricas cuando las...

1
of 1
MA
# funciones trigonométricas en la
# Circunferencia unitaria
Scribe
Las razones trigonometricas en la circunferencia unitaria se
definen d

Funciones Trigonométricas en la Circunferencia Unitaria

Imaginate que tienes un círculo perfecto con radio = 1, centrado en el origen de un plano cartesiano. Aquí es donde la trigonometría se vuelve más visual y fácil de entender.

En este círculo especial, las funciones trigonométricas se definen usando las coordenadas (x, y) y el radio r. Las fórmulas básicas son: Sen α = y/r, Cos α = x/r, y Tan α = y/x. También tienes las funciones recíprocas: Csc α = r/y, Sec α = r/x, y Cot α = x/y.

Lo genial de esto es que cada punto en el círculo te da valores específicos para estas funciones. Dependiendo en qué cuadrante esté tu ángulo, las funciones pueden ser positivas o negativas.

Dato clave: En el cuadrante I todas las funciones son positivas, pero esto cambia según te muevas por los otros cuadrantes.

Los signos por cuadrante:

  • Cuadrante I: Todas positivas (+)
  • Cuadrante II: Solo Sen y Csc son positivas
  • Cuadrante III: Solo Tan y Cot son positivas
  • Cuadrante IV: Solo Cos y Sec son positivas

Esto te ayuda muchísimo para resolver problemas y no perderte con los signos en los exámenes.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Trigonometric Functions

9

Most popular content in Matemáticas

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user

MatemáticasMatemáticas80 views·Updated Jun 18, 2026·1 page

¿Qué Son las Funciones Trigonométricas y Cómo Operan en la Circunferencia Unitaria?

user profile picture
yulss@julianamillanfranco_jhd0

¿Te has preguntado cómo funcionan las funciones trigonométricas cuando las ubicamos en un círculo? La circunferencia unitaria te permite visualizar y entender mejor el seno, coseno y tangente de una manera súper práctica.

1
of 1
MA
# funciones trigonométricas en la
# Circunferencia unitaria
Scribe
Las razones trigonometricas en la circunferencia unitaria se
definen d

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Funciones Trigonométricas en la Circunferencia Unitaria

Imaginate que tienes un círculo perfecto con radio = 1, centrado en el origen de un plano cartesiano. Aquí es donde la trigonometría se vuelve más visual y fácil de entender.

En este círculo especial, las funciones trigonométricas se definen usando las coordenadas (x, y) y el radio r. Las fórmulas básicas son: Sen α = y/r, Cos α = x/r, y Tan α = y/x. También tienes las funciones recíprocas: Csc α = r/y, Sec α = r/x, y Cot α = x/y.

Lo genial de esto es que cada punto en el círculo te da valores específicos para estas funciones. Dependiendo en qué cuadrante esté tu ángulo, las funciones pueden ser positivas o negativas.

Dato clave: En el cuadrante I todas las funciones son positivas, pero esto cambia según te muevas por los otros cuadrantes.

Los signos por cuadrante:

  • Cuadrante I: Todas positivas (+)
  • Cuadrante II: Solo Sen y Csc son positivas
  • Cuadrante III: Solo Tan y Cot son positivas
  • Cuadrante IV: Solo Cos y Sec son positivas

Esto te ayuda muchísimo para resolver problemas y no perderte con los signos en los exámenes.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Trigonometric Functions

9

Most popular content in Matemáticas

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user