4 suites arithmetic These questions are independent. 1. On the right to the whole suite (un) by un = 3n - 2. Find out that (un) is an arithmetic suite. 2. Select (un) arithmetic suite from the first term up = 5 and from the raison calculator the first term, puis the name: Suo + U1 + ... + Ug. 1 3. Make (un) a first-term arithmetic suite u₁ = 2 and raison -2. Calculator 415, with the name: E = 47+Ug+...+U15. 4. Calculator: S11+14+17+...+170+173.