У прямоугольного треугольника гипотенуза ровна 10см а синус одного из острых углов 0,7.Найти катеты треугольника

Назовите структурные формулы третичных спиртов с эмпирической формулой C6H13OH. Назовите изомеры по международной номенклатуре.

решите уровнение икс вторых +3,5икс=2

Помогите написать письмо про погоду в Беларуси.

HELP BOX

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