f(x)=x^2-1/x^2+1 найти производную f(x)=2x^2/1-7x решите подробно пожалуйста

Придумайте диалог с исторической личностью со словами:ФАЛАНГА,КОМАТ,ЭЛИНИСТИЧЕСКАЯ ЦЕВИЛИЗАЦИЯ,ВСАДНИК,МАЯК,ЛЕГИОН.

Ask eight questions on the text. Business today is international. Business people often have to travel a lot. They have to plan an itinerary for a foreign business trip to make good use of their time. On a business trip people may meet colleagues and business partners for the first time. It is usual for colleagues from different countries to experience cultural differences. In other words, they may be surprised by foreign social conventions. They are surprised by the different ways that other nationalities or different cultures do things.

Химические свойства пропана , пропена и этина.

Работа выхода электрона у калия 3.62*10^-19 Дж. Если калий осветить лучами с длиной волны 4*10^-7 ь, то максимальная кинетическая энергия электрона (h=6.62*10^-34 Дж*с) Ответ: 1.35*10^-19 Дж