Упростить выражение 1-cos^2(п+х)/sin^2(п/2-х) ПОМОГИТЕ ПОЖАЛУЙСТА - №22737388

Упростить выражение 1-cos^2(п+х)/sin^2(п/2-х)
ПОМОГИТЕ ПОЖАЛУЙСТА
- Предмет:
  Алгебра
- Автор:
  big guybtym
- 5 лет назад

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Today it is fashionable to speak about teenage broblems. A few years ago alcohol, fights, killings and other kinds of violence were more problems for adults than for young people.
But now, as official reporta admit, violence, AIDS, drugs and alcohol are more and more associated with youngerst. For many children from poor families violence, drinking problems and all that is associated with powerty becomes more real than reality.
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