{"id":165,"body_html":"

O valor de $(cos 165^\circ + sen 155^\circ + cos 145^\circ – sen 25^\circ +cos 35^\circ + cos15^\circ)$ é.

a) $\sqrt{2}$
b) $-1$
c) $0$
d) $1$

e) $\dfrac{1}{2}$

","body":"O valor de $(cos 165^\circ + sen 155^\circ + cos 145^\circ - sen 25^\circ +cos 35^\circ + cos15^\circ)$ é. *a)* $\sqrt{2}$ *b)* $-1$ *c)* $0$ *d)* $1$ *e)* $\dfrac{1}{2}$","answer_html":null,"n":17,"entrance_exam_id":11,"video":{"id":258,"duration":290,"title":"EsPCeX 2014 Q17","views_count":14,"thumb":"https://i.vimeocdn.com/video/526403876_640x360.jpg?r=pad","thumb_small":"https://i.vimeocdn.com/video/526403876_295x166.jpg?r=pad","thumb_large":"https://i.vimeocdn.com/video/526403876_1280x720.jpg?r=pad","title_url":"espcex-2014-q17","tags":[{"id":180,"title":"Equação trigonométrica","created_at":"2014-08-25T17:15:54.761-03:00","updated_at":"2016-02-03T16:24:27.512-02:00","title_url":"equacao-trigonometrica","questions_count":0,"videos_count":1},{"id":224,"title":"EsPCeX","created_at":"2015-03-31T15:58:20.479-03:00","updated_at":"2016-02-03T16:24:27.600-02:00","title_url":"espcex","questions_count":0,"videos_count":22},{"id":137,"title":"Função trigonométrica","created_at":"2014-08-25T17:15:53.975-03:00","updated_at":"2016-02-03T16:24:28.215-02:00","title_url":"funcao-trigonometrica","questions_count":3,"videos_count":1}],"vimeo_id":null,"permission":"p"},"permission":"p","duration":null,"difficulty":null,"exam_question_user":{"id":null,"exam_question_id":165,"user_id":null,"later":false,"done":false},"title":"Questão 17 - EsPCEX 2014"}

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EsPCeX 2014 Q17

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