тржнения Представьте в виде суммы синусов или косинусов. \( \begin{array}{ll}\text { а) } \sin 48^{\circ} \sin 22^{\circ} \text {; } & \text { в) } \sin 56^{\circ} \cos 18^{\circ} ; \\ \text { б) } \sin \frac{3 \pi}{12} \cos \frac{\pi}{8} & \text { г) } \cos \frac{\pi}{8} \cos \frac{5 \pi}{12}\end{array} \)

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 \( \begin{array}{llll}\text { (a) }-3 \sin \theta & \text { (b) }-3 \cos \theta & \text { (c) } 3 \cos \theta & \text { (d) } 0\end{array} \)

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

En un triángulo rectángulo, uno de los ángulos agudos mide 35 grados. ¿Cuál es el valor del otro ángulo agudo?

(6) The value of \( \sec \left(300^{\circ}\right) \sin \left(270^{\circ}-\theta\right)+\tan \left(-45^{\circ}\right) \cos (3 M-9) \) is \( \begin{array}{lll}\text { (a) }-3 \sin \theta & \text { (b) }-3 \cos \theta & \text { (c) } 3 \cos \theta\end{array} \) (7) If the product of two roots of the equation : \( (k-2) x^{2}-6 x+12=0 \) equals 3

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