Упростите выражение 1-cos^2a/cos^2a - №31679056

Упростите выражение 1-cos^2a/cos^2a
- Предмет:
  Математика
- Автор:
  benji32
- 6 лет назад

Ответы 1

Ответ: tg^2a
1-сos^2a/cos^2=sin^2a/cos^2a=tg^2a
- Автор:
  kierra
- 6 лет назад
- 0
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