Error
  • JLIB_APPLICATION_ERROR_COMPONENT_NOT_LOADING
  • JLIB_APPLICATION_ERROR_COMPONENT_NOT_LOADING
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1
  • Error loading component: com_content, 1

 

В арифметической прогрессии (an) a= 18, a17 = 213. Найдите разность прогрессии.

Решение.

Ответ: 15