Вычислите: а) 2sin60° + ctg ( - π/6) б) cos 7π/4 + tg540° . Created by Lu14. algebra-ru

4 + tg540° ...

Lu14 @Lu14

July 2022 1 9 Report

Вычислите:

а) 2sin60° + ctg ( - π/6)

б) cos 7π/4 + tg540°

Answers & Comments

hote

Verified answer

$\displaystyle 2sin(60)+ctg(-\frac{\pi}{6})=2*\frac{\sqrt{3}}{2}- ctg(\frac{\pi}{6})=\sqrt{3}-\sqrt{3}=0$

$\displaystyle cos(\frac{7\pi}{4})+tg(540)=cos(\pi-\frac{\pi}{4})+tg(360+180)=\\\\=cos(\frac{\pi}{4})+tg(\pi)=\frac{\sqrt{2}}{2}+0=\frac{\sqrt{2}}{2}$

6 votes Thanks 13

cosa 08 270 lt a lt 360 najti ctg90 a

Answer

Lu14 June 2022 | 0 Ответы

za 8 karandashej i 5 tetradej zaplatili 417 tenge a za 2 karandasha i 1 tetrad6197111b4499136140bd1875fcf6e9e8 98107

Answer

Lu14 June 2022 | 0 Ответы

za 30 minut kater prohodit po techeniyu reki 45 km najdite skorost techeniya reki

Answer

рекомендуемые вопросы

rarrrrrrrr August 2022 | 0 Ответы

o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n

danilarsentev August 2022 | 0 Ответы

est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha

myachina8 August 2022 | 0 Ответы

najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie

ydpmn7cn6w August 2022 | 0 Ответы

Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...

millermilena658 August 2022 | 0 Ответы

opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii

MrZooM222 August 2022 | 0 Ответы

ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi

timobila47 August 2022 | 0 Ответы

kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta

ivanyyaremkiv August 2022 | 0 Ответы

moment. 6....

pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513

sarvinozwakirjanova August 2022 | 0 Ответы

pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631

Answers & Comments

Verified answer

cosa 08 270 lt a lt 360 najti ctg90 a

za 8 karandashej i 5 tetradej zaplatili 417 tenge a za 2 karandasha i 1 tetrad6197111b4499136140bd1875fcf6e9e8 98107

za 30 minut kater prohodit po techeniyu reki 45 km najdite skorost techeniya reki

рекомендуемые вопросы

Helpful Links

Helpful Social