1 5 1 2 5 0,64- 5 -2

3. - DE THI HSG CASIO30 DE THI HSG GIAI TOAN BANG MAY TINH CASIO
DE THI HSG CASIO30 DE THI HSG GIAI TOAN BANG MAY TINH CASIO

3.Tính

C=

+

+0,6.0,5:

1

5

1

2

5

0,64-

5 -2

.2

÷

25

9

4

17

D=5+

4

6+

4

7+

4