Знайдіть значення виразу sin²16°+cos²16°-sin²60°. - №23165560

Знайдіть значення виразу sin²16°+cos²16°-sin²60°.
- Предмет:
  Геометрия
- Автор:
  franklinqyvq
- 5 лет назад

Ответы 1

$sin^{2}16+cos^{2}16=1$ $1- sin^{2}60=cos^{2}60=( \frac{1}{2})^{2}= \frac{1}{4}$
- Автор:
  melina
- 5 лет назад
- 0
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