1)СosA = 1/3
SinA = ?

2)CosA = 24/25
TgA-?

Question

Геометрия

Beazelore

7 год назад

1)СosA = 1/3
SinA = ?

2)CosA = 24/25
TgA-?

ОТВЕТЫ

Ардалион

Aug 1, 2019

$\cos a = \frac13\\amp;#10;\sin a = 1 - \cos^2a=1-\frac19=\frac89\\amp;#10;\\amp;#10;\cos a=\frac{24}{25}\\amp;#10;\tan a = \frac{\sin a}{\cos a}=\frac{1- \cos ^2 a}{\cos^2a}=\frac{1-\frac{576}{625}}{\frac{576}{625}}=\frac{49}{576}$

82

1)СosA = 1/3 SinA = ? 2)CosA = 24/25 TgA-?

1)СosA = 1/3
SinA = ?

2)CosA = 24/25
TgA-?