cos2x+3sinx-2=0 sin2x-6sinx=0. Created by pavanna2010. matematika-ru

cos2x+3sinx-2=0 sin2x-6sinx=0...

pavanna2010 @pavanna2010

July 2022 1 7 Report

cos2x+3sinx-2=0
sin2x-6sinx=0

Answers & Comments

shevtsovavalia 1)cos2x+3sinx-2=0
1-2sin²x+3sinx-2=0
sinx=a
2a²-3a+1=0
D=1
a=1; sinx=1 ⇒x=π/2+2πn
a=1/2; sinx=1/2⇒x=(-1)ⁿπ/6+πn
2)sin2x-6sinx=0
2sinx*cosx-6sinx=0
2sinx(cosx-3)=0
sinx=0
x=πn

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podrobnoe reshenie 9x 6x154x0

abcd romb so storonoj 4 sm ugol adc150 gradusovbm perpendikulyarno k ploskosti

poschitajte koefficient uvlazhneniya dlya g habarovsk 550mm isparyaemost 400 mm kak

v kakom napravlenii ot vodopada anhel raspolozhen vulkan kotopahi v yuzhnoj amerik

vychislite sin2aesli sina cosap

2...

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