Предмет: Математика, автор: polanda

Помогите, пожалуйста с заданием в егэ

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Автор ответа: 330505

0

необходимо решить систему условий:
1) 5sin^2x-3sinx=0
2) 5cosx+4 не равно 0

Первое решается разложением на множители; второе простейшее тригонометрическое уравнение

Автор ответа: shevtsovavalia

0

1)5sin²x-3sinx=0
sinx(5sinx-3)=0
sinx=0 или sinx=3/5
x=πn; x=(-1)k arcsin3/5
2)-3π;-2π; -7/2π+arcsin3/5

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