Решите пожалуйста - [tex]4* sin( \frac{ \pi }{3}+a) -2sina[/tex]. Created by Eighto. matematika-ru

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Eighto @Eighto

July 2022 2 10 Report

Решите пожалуйста - [tex]4* sin( \frac{ \pi }{3}+a) -2sina[/tex]

manyny06

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Решение смотри на фотографии

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IrkaShevko

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1) $-4sin( \frac{ \pi }{3} +a)-2sina=-4(sin \frac{ \pi }{3} cosa+sinacos \frac{ \pi }{3} )-2sina=\\
=- 2 \sqrt{3} cosa-2sina-2sina=- 2 \sqrt{3} cosa-4sina$

2) $4sin( \frac{ \pi }{3} +a)-2sina=4(sin \frac{ \pi }{3} cosa+sinacos \frac{ \pi }{3} )-2sina=\\
=2 \sqrt{3} cosa + 2sina-2sina=2 \sqrt{3} cosa$

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