Summaries - The First World War and the Russian Revolution (1914-1939)

1. Europe at the beginning of the 20th century During the 19th century, most of the industrialised countries established constitutional and parliamentary systems. England and France became even more…

Complete. The Bolsheviks and the 3rd Internationale

Complete the text with the missing words: workers' – Europe – Bolsheviks – Soviet – Moscow – revolution – COMINTERN – Russia The thought that for the to triumph in it was necessary to…

Interpret. Debt after World War I

Describe the debt situation after the First World War. → ... owed $ ... to ... . Which country was most seriously in debt? Which nation benefited the most?

The great Allied offensives (1942-1945)

8.1. The Allied war effort In 1942, Britain, the United States of America and the USSR (under the rule of Churchill, Roosevelt and Stalin, respectively) reorganised their economies in accordance with…

Living conditions in the camps

The prisoners were used to build and enlarge the camp, though they also had to do agricultural, mining and industrial work. (…) All they were given to eat was soup (...). After their work was over…

Partituras

Escribe. Polinomio opuesto

Recuerda responder según las siguientes indicaciones Escribe el polinomio opuesto de P(x) = 5x2 – 2x + 3 y comprueba que al sumarlo con P(x) da 0. El polinomio opuesto es .

Calcula. Operaciones con polinomios (5)

Recuerda responder según las siguientes indicaciones Dados P(x) = 2x2 – 3x – 1, Q (x) = 4x2 – 2x + 4 y R(x) = x2 – 2x – 2, calcula: P(x) · Q(x) = P(x) · R(x) = Q(x) · R(x) = [P(x)]2 =

Autoevaluación 7 - Ecuaciones

Resuelve estas ecuaciones de segundo grado incompletas: 3x2 – 21 = 0    →    x = y x = x2 – 17x = 0    →    x = y x =

Pirámides. Actividad 9

¿Puede tener una pirámide un número par de vértices? puede. ¿Y un número impar de aristas? puede.