Question

Someone please help me! Fan and medal (:

Answer 1

Here is the question.^^^^

Answer 2

Find the value of the variables.

Answer 3

Cos1= .54
cos45= .52
7/14 = .5 = 1/2

Answer 4

$$
cos(x) = \frac{7}{14} = \frac{\cancel 7}{\cancel 7 \cdot 2} = \frac{1}{2} \\
x = \pm60^\circ + 360^\circ K = \pm \frac{\pi}{3} + 2\pi K
$$