580. Найдите значение выражения: 5
1) а + 7 при а = 4;
12
2
3)
1
3
+1= а при а = 1;
4
5
5
2) а
2
b +
9
со |
при b=
А | со
;
3 1
1
4) 2 – Ъ+
10 2
при b = 2
2​

   21 324    :  37                                           216724     : 42

     185                                             210           

            576 ( остача 12)                       516( в остатку 4) 

        282                                                             67

        259                                                             42

          234                                                           252

          222                                                           252

            12                                                                 4

     21 324    :  37                                           216724     : 42

     185                                             210           

            576 ( остача 12)                       516( в остатку 4) 

        282                                                             67

        259                                                             42

          234                                                           252

          222                                                           252

            12                                                                 4