ПОМОГИТЕ СРОЧНО С АЛГЕЬРОЙ!!!!!!!tg(2Π-a)*cos (Π-a)/tg(3Π/2+a)*cos(3Π/2+a)

ПОМОГИТЕ СРОЧНО С АЛГЕЬРОЙ!!!!!!!tg(2Π-a)*cos (Π-a)/tg(3Π/2+a)*cos(3Π/2+a)
- Предмет:
  Алгебра
- Автор:
  echo
- 4 года назад

Ответы 1

$\frac{tg(2 \pi - \alpha )*Cos( \pi - \alpha )}{tg( \frac{3 \pi }{2} + \alpha )*Cos( \frac{3 \pi }{2} + \alpha) } = \frac{-tg \alpha *(-Cos \alpha )}{-Ctg \alpha *Sin \alpha } =- \frac{ \frac{Sin \alpha }{Cos \alpha } *Cos \alpha }{ \frac{Cos \alpha }{Sin \alpha }*Sin \alpha } =- \frac{Sin \alpha }{Cos \alpha } =-tg \alpha$
- Автор:
  zion2
- 4 года назад
- 0
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ПОМОГИТЕ СРОЧНО С АЛГЕЬРОЙ!!!!!!!tg(2Π-a)cos (Π-a)/tg(3Π/2+a)cos(3Π/2+a)

Ответы 1

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