Question

ajutorr

1. 1+2+3..+73=
2.b la puterea 13 * b * b la puterea 21 * b la puterea 20
3.c la puterea 58 / c la puterea 39 / c la puterea 9

Answer 1

1. 1+2+3+...+73=73x74/2=73x37=2701
2 =b la puterea (13+21+20)=b la puterea 54
3 c la puterea 58:c la 39:c la 9=c la (58-39-9)=c la 10