Question

determine o valor da medida x

Answer 1

a)

$\tan(60\degree) = \frac{8 \sqrt{3} }{x} \\ \cancel{\sqrt{3} } = \frac{8\cancel{ \sqrt{3}}i }{x} \\ x= 8$

b)

$\cos(45\degree) = \frac{y}{6 \sqrt{2} } \\ y = 6 \sqrt{2}. \frac{ \sqrt{2} }{2} \\ y = 3.2 = 6$

$\cos(60\degree) = \frac{x}{6} \\x = 6. \frac{1}{2} \\ x = 3$