Sendo cosx= 2/3, com 3 pi/2 < x< 2 pi determinar a cotgx e cossecanx.... Pergunta de ideia deKamyllaPortella0809

KamyllaPortella0809 @KamyllaPortella0809

December 2019 1 59 Report

Sendo cosx= 2/3, com 3 pi/2 < x< 2 pi determinar a cotgx e cossecanx

Lista de comentários

GeniusMaia Olá,

A cotgx = cosx/senx. Temos cosx, mas não temos senx. Vamos encontrá-lo:
sen²x + cos²x = 1
sen²x + (2/3)² = 1
sen²x = 1 - 4/9
sen²x = 5/9
senx = √5/3

cotgx = cosx/senx
cotgx = (2/3)/(√5/3)
cotgx = (2/3)*(3√5)
cotgx = 6/3√5
cotgx = 2/√5
cotgx = 2√5/5

cossecx = 1/senx
cossecx = 1/(√5/3)
cossecx = 1*3/√5
cossecx = 3/√5
cossecx = 3√5/5

Bons estudos ;)

2 votes Thanks 3

More Questions From This User See All

KamyllaPortella0809 December 2019 | 0 Respostas

Sendo senx=-3/4, com pi

KamyllaPortella0809 December 2019 | 0 Respostas

Sendo senx=-3/4, com pi < x< 3 pi/2 determinar tgx e secantx

KamyllaPortella0809 December 2019 | 0 Respostas

KamyllaPortella0809 December 2019 | 0 Respostas

KamyllaPortella0809 December 2019 | 0 Respostas

KamyllaPortella0809 October 2019 | 0 Respostas

KamyllaPortella0809 October 2019 | 0 Respostas

Recomendar perguntas

Deividyfreitas May 2020 | 0 Respostas

BlackShot May 2020 | 0 Respostas

Vanessakellen May 2020 | 0 Respostas

Guiduarter May 2020 | 0 Respostas

Mrzaine May 2020 | 0 Respostas

O QUE SERIA AUTONOMIA?

Grazifer May 2020 | 0 Respostas

Joazinho May 2020 | 0 Respostas

a palavra rapidez formou se de qual derivacao

Celiana May 2020 | 0 Respostas

Joazinho May 2020 | 0 Respostas

Anatercia May 2020 | 0 Respostas

Helpful Links

Política de Privacidade

Termos e Condições

direito autoral

Helpful Social

Copyright © 2024 ELIBRARY.TIPS - All rights reserved.