1+sinx+cosx+sin2x+cos2x=0. Created by olga0nels. algebra-ru

1+sinx+cosx+sin2x+cos2x=0...

August 2022 1 4 Report

1+sinx+cosx+sin2x+cos2x=0

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Munkush $1+\sin \leftx\right+\cos \leftx\right+\sin \left2x\right+\cos \left2x\right=0 \\ 1+\cos \left2x\right+\cos \leftx\right+\sin \leftx\right+2\cos x\leftx\right\sin x\leftx\right=0 \\ \cos \left x\right +\sin \left x\right+2\cos ^2\leftx\right+2\cos \left x\right\sinx \leftx\right=0 \\ \left(2\cos \left(x\right)+1\right)\left(\sin \left(x\right)+\cos \left(x\right)\right)=0$

2cos(x)+1=0 sin(x)+cos(x)=0
cos(x)= - 1/2

$\cos \left(x\right)=-\frac{1}{2} ;x=\frac{2\pi }{3}+2\pi n,\:\quad x=\frac{4\pi }{3}+2\pi n \\ sin(x)+cos(x)=0;\quad x=\frac{3\pi }{4}+\pi n$

$Otvet:x=\frac{2\pi }{3}+2\pi n,\:x=\frac{3\pi }{4}+\pi n,\:x=\frac{4\pi }{3}+2\pi n$

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log^2 9 x^2-log9 x^6+2=0...

x2x 3x 2x 30

4*7^(2x+4)-3^(2x+6)-2*7^(2x+3)+3^(2x+3)=0...

sin3xsin5xsin4x reshite uravnenie098d602885a766af2360f922802ba39c 4871

4x10x 225x0 reshite uravnenie3d174f809ea874847d26c14debe23c17 32503

h 32h 30 reshite uravnenie

2cos^2 x+3sin2x-8sin^2x=0...

14log2 9 x2logarifm v kvadrate h2 po osnovaniyu 9 log9 x6 logarifm h6 po

sos2xcosxsinx reshite uravnenie

x^(log2 5)+5^(log2 x)=10...

рекомендуемые вопросы

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47^(2x+4)-3^(2x+6)-27^(2x+3)+3^(2x+3)=0...