9*(1/9)²-19*1/9,решите пжлст:о

Question

9*(1/9)²-19*1/9,решите пжлст:о

Answer 1

9×(1/9)²-19 × 1/9 = 1/9-19/9=-18/9=-2

Comments

спасибо)

Answer 2

9*1\81 - 19*1\9= 1\9 -19\9=1\9-2целых1\9= -2

Comments

спасибо=.=