Solve, finding all solutions in \( [0,2 \pi) \) or \( \left[0^{\circ}, 360^{\circ}\right) \). \( 8 \cos ^{2} x=2 \) The solution(s) in \( \left[0^{\circ}, 360^{\circ}\right) \) is/are \( x=60,120,240,300 \). (Type your answer in degrees. Do not include the degree symbol in your answer. Use a comma to separate answers as needed.) The solution(s) in \( [0,2 \pi) \) is/are \( x=\square \) (Simplify your answer. Type an exact answer, using \( \pi \) as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)

\( \log ( \cos \theta ) + \log ( \sec \theta ) = \ldots \ldots \ldots . . , \theta \in [ 0 , \frac { \pi } { 2 } ] \)

The value of \( \sec \left(300^{\circ}\right) \sin \left(270^{\circ}-\theta\right)+\tan \left(-45^{\circ}\right) \cos \left(360^{\circ}-\theta\right) \) is \( \begin{array}{llll}\text { (a) }-3 \sin \theta & \text { (b) }-3 \cos \theta & \text { (c) } 3 \cos \theta & \text { (d) } 0\end{array} \)

Дан треугольник \( A B C \), в котором известно, нто \( A B=B C . \angle A=15^{\circ} \). Найди внешний гол этого треугольника, который является межным для угла \( C \), ответ дай в градусах.

11) The measure of the smallest positive angle satisfy the relation : \( 2 \sin \theta=-1 \) is \( \begin{array}{lll}\text { (a) } 30^{\circ} & \text { (b) } 120^{\circ} & \text { (c) } 210^{\circ} y=x\end{array} \)

1. Xucos kyreg \( 2 \arcsin \frac{\sqrt{2}}{2}-\frac{1}{2} \operatorname{arctg} \sqrt{3}= \)