1. \( -1450^{\circ} \) nin esas ölçüsü aşağıdakilerden hangisi- dir? \( \begin{array}{lllll}\text { A) } 10^{\circ} & \text { B) } 40^{\circ} & \text { C) } 105^{\circ} & \text { D) } 150^{\circ} & \text { E) } 350^{\circ}\end{array} \)

EXERCICE3: (5 points) 1. Résous dams R, requation \( 2 t^{2}+\sqrt{3} t-3=0 \) 2. Détermine les nombres réels \( A \) et \( B \) tels que pourt tout \( x \in \mathbb{R} \), on ait: \[ \sqrt{3} \cos x+\sin x=A \sin (x+B) \] 3. a. Utilise les résultats des questions 1. et 2. pour résoudre dans l'intervalle ] \( -\pi \); \( \pi \) ] léquation \( (E)=\left(2 \cos ^{2} x+\sqrt{3} \cos x-3\right)(\sqrt{3} \cos x+\sin x-\sqrt{3})=0 \) 4. Reprisente les images des solutions de (E) sur un cercle trigonométrique.

If \( \sin \theta+\cos \theta=x \), then find the value of \( \sin ^{8} \theta+\sin ^{4} \theta+ \) \( \cos ^{6} \theta+\cos ^{4} \theta \).

Ex.2; Find Own Ship's New Course \( \mathrm{C}_{0}=010^{\circ}, \mathrm{V}_{0}=12 \mathrm{kn} \). Radar observations in fogs \( 1030 \mathrm{D}=8^{\prime}, 0, \mathrm{~T} \mathrm{~B}=038^{\circ} \); \( 1036 \mathrm{D}=7^{\prime}, 0, \mathrm{~T} \mathrm{~B}=038^{\circ} \); \( 1042 \mathrm{D}=6^{\prime}, 0, \mathrm{~T} \mathrm{~B}=038^{\circ} \); Own ship will alter course to starboard in 9 minutes to make the desired \( \mathrm{DCPA}=2^{\prime}, 0 \). Requireds 1. The target ship's course and speed. 2. Own ship's new course and new TCPA 4

If \( \sin \theta+\cos \theta=x \), then find the value of \( \sin ^{6} \theta+\sin ^{4} \theta+ \) \( \cos ^{6} \theta+\cos ^{4} \theta \)

\( 0 / 1^{\star} \quad \begin{array}{l}\text { The general solution of the } \\ \text { equation : } \operatorname{Tan}(\Theta+20)=\operatorname{Cot}(3 \Theta \\ +30)\end{array} \)