11 a)1+1+5+7+9+11 b)1+3+5+7...+19 b) 10:5¹ +10-12":64+2' [1035: (5-3)-(2" 7" (4²-45°): 2]}; +5 (625:5+ [(3-3.5)" (9.257) +6² :3 ]·2º]; 3² d) (2¹28") + (33*** 8²): (9,2%), unde n este numár natural; *"): [6.2 + (317) +2557] [2,300 + (300)" +5″]; 1) (2.3"+2"-3" +6"):6", unde n este număr natural; g) (22*1,3" +4"-32):12", unde n este numär natural; h) (2³***,9" +-8"-32"* +62", 2"*):13

plss dau coroana❗❗❗❗❕❕❕​