De acuerdo con la presentación indique a qué tipo de ciclo de vida pertenecen las siquientes actividades \( \begin{array}{ll}1 & \text { Objetivo } \\ 2 & \text { Análisis y evaluacion de riesgo } \\ 3 & \text { Desarrollo y pruebas } \\ 4 & \text { Planificación del siguiente ciclo }\end{array} \)

(ix) The equation \( \frac{1}{r r} \frac{\partial}{r}\left(r \frac{\partial u}{r r}\right)=\frac{1}{c^{2}} \frac{\partial^{2} u}{\partial t^{2}} \) is one dimensional wave equation in: (a) Cylindrical coordinate (b) Polar coordinate (c) Spherical coordinate (d) None of these

A historian is exploring the demographic patterns in West Africa's high forest zone. Which historical factor best explains the hig population density in this area? a. Absence of significant slave raids b. Consistent low temperatures c. Frequent and devastating wars d. Lack of fertile soils for agriculture

A linguist is studying the Yoruba language. Which factor contributed most to its historical spread across West Africa? a. Its adoption as an ECOWAS official language b. The expansion of the Benin Kingdom c. The influence of European colonial rule

A developing nation introduces measures to increase economic productivity per capita. Which theory does this align with? a. Optimum population theory b. Malthusian theory c. Population bomb theory d. Demographic transition model

4. ¿Cuál de estas igualdades es correcta? (A) \( \log _{3} 8=2 \) (B) \( \log _{3} 2=8 \) (C) \( \log _{2} 8=3 \) (D) \( \log _{2} 3=8 \) (D)