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juliiasemibratova13
@juliiasemibratova13
July 2022
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Решите тригонометрическое уравнение!!!!!!!
sinx+sin5x+cosx+cos5x=0
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smilkovska98
2sin3xcos2x+2cos3xcos2x=0
cos2x(sin3x+cos3x)=0
cos2x=0
x=П/4+пk/2
sin3x+cos3x=0
tg3x=-1
3x=-П/4+Пk
x=-П/12+Пk/3
1 votes
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Answers & Comments
cos2x(sin3x+cos3x)=0
cos2x=0
x=П/4+пk/2
sin3x+cos3x=0
tg3x=-1
3x=-П/4+Пk
x=-П/12+Пk/3