2sin^2-3sinx*cos^2x =0Помагите...

araykooosh @araykooosh

July 2022 1 12 Report

2sin^2-3sinx*cos^2x =0
Помагите

Answers & Comments

revushka1 2sin²x-3sinx*cos²x=0
2sin²x-3sinx*(1-sin²x)=0
2sin²x-3sinx+3sin³x=0
sinx*(3sin²x+2sinx-3)=0
D=b²-4ac=4+36=50>0
(sinx)₁₂= $\frac{-2+- \sqrt{50} }{6} = \frac{-2+-5 \sqrt{2} }{6}$
Т.к. -1≤sinx≤1=> sinx= $\frac{-2+5 \sqrt{2} }{6}$
$\left \{ {{sinx=0} \atop {sinx= \frac{-2+5 \sqrt{2} }{6} }} \right.$
$\left \{ {{x= \pi k} \atop {x=(-1)^{n}arcsin( \frac{-2-5 \sqrt{2} }{6} )+ \pi n }} \right.$
n,k⊆Z

1 votes Thanks 2

More Questions From This User See All

araykooosh July 2022 | 0 Ответы

2sin2x 3sinx cos2x 0pomagite pzh

araykooosh July 2022 | 0 Ответы

didn't choose physics...

araykooosh July 2022 | 0 Ответы

1) I always ... to arrive everywhere on time. a) Were trying b) has tried c) try...

araykooosh July 2022 | 0 Ответы

pozhalujsta pomogite mne 20 ball

araykooosh July 2022 | 0 Ответы

He went surfing ...... summer. a) very b) ever c) last d ) always e) never...

araykooosh July 2022 | 0 Ответы

1)I should go to the shop .2)I should have gone to the shop.3)I shouldn't go to ...

araykooosh July 2022 | 0 Ответы

I am ... a new house. a) saving on b) saving out c) saving for d) saving over...

araykooosh June 2022 | 0 Ответы

2...

araykooosh June 2022 | 0 Ответы

pomagite pozhalujstae505b941748ab5c8e99e313a05fd28f7 84495

araykooosh June 2022 | 0 Ответы

pozhalujsta pomagitef19c048f001db0be9d13c51d65a49860 60505

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

pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513

sarvinozwakirjanova August 2022 | 0 Ответы

pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631

Helpful Links

Политика конфиденциальности

Правила и условия

Контакты

Helpful Social

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.