3. Asignación de Actividades Formativas: 3.1 Escriba 2 ejemplos de magnitudes directamente proporcionales. 3.2 Escriba 2 ejemplos de magnitudes inversamente proporcionales.

\( \lim _ { x \rightarrow 3 } \frac { x ^ { 2 } + a x + b } { x - 3 } = 2 \)

2. Sexda 4 ta stanok va 14 ta ishchi ishlaganda 30 ta stul ishlab chiqariladi. Agar 3 ta stanok va 6 ishchi ishlasa 36 ta stul ishlab chiqariladi. Kapital va mehnatning chekli mahsuloti o'zgarmas. Sexda 7 stanok va 10 ta ishchi ishlasa, qancha stul ishlab chiqariladi (bu yerda mehnatni qurollanganlik darajasidan foydalaniladi)?

\( 6 \times 2 \times \quad = 96 \)

\( \begin{array}{ccccc}\text { A) } 80^{\circ} & \text { B) } 100^{\circ} & \text { C) } 50^{\circ} & \text { D) } 90^{\circ} \\ \text { 10. Ifodani soddalashtiring: } \frac{\cos 2 \alpha}{\sin \alpha \cos \alpha+\sin ^{2} \alpha}+1 & \text { A) } \operatorname{tg} \alpha & \text { B) } \operatorname{ctg} \alpha & \text { C) } \cos \alpha & \text { D) } \sin \alpha\end{array} \) 2-qism: Har bir topshiriq 1,5 balldan baholanadi

\( \quad \) Use the References to access important values if needed for this question. A student ran the following reaction in the laboratory at 705 K : \[ \mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \rightleftharpoons 2 \mathrm{NH}_{3}(g) \] When she introduced 0.0389 moles of \( \mathrm{N}_{2}(g) \) and 0.0706 moles of \( \mathrm{H}_{2}(g) \) into a 1.00 liter container, she found the equilibrium concentration of \( \mathrm{H}_{2}(g) \) to be 0.0680 M . Calculate the equilibrium constant, \( K_{\mathrm{c}} \), she obtained for this reaction. \( K_{\mathrm{c}}= \)