Question

Olá, boa noite ! 
Preciso de cinco (5) exercícios de seno, cosseno e tangente . Obrigada .

Answer 1

$<var>a)sen30 - \frac{1}{2} = \frac{8}{x} x=16 b)tg60 - \sqrt{3}/1 = \frac{x}{2} x= 12 \sqrt{3} c)cos45 - \sqrt{2}/2 = \frac{7}{x} x=7\sqrt{2} d)cos30 \sqrt{3}/2 = \frac{x}{20} x=10\sqrt{3} e)45 = \sqrt{2}/2 = \frac{x}{10} x= 5\sqrt{2}</var>$