. C. N = N0E-. D. N = N02A. N = N0ET. B. N = N02 TT

1 . - CAC DANG BAI TAP HAT NHAN NGUYEN TU DAP AN
CAC DANG BAI TAP HAT NHAN NGUYEN TU DAP AN

1

. . C. N = N

0

e

-

. D. N = N

0

2A. N = N

0

e

t

. B. N = N

0

2

T

T