Question

simplifique a expressão 3. (-1/2)^2 + 1/4 / 3. (-1/3)^2 -3/2

Answer 1

3. (-1/2)^2 + 1/4 / 3. (-1/3)^2 -3/2

3x (-1/4) + (1/4/3)x (-1/9) -3/2

(-3/4)+ (3/4)x(-1/9) -3/2

(-3/4)+ (-3/36) -(3/2)

(-27/36) -(3/36) - (54/36) = -84/36 = 21/9 = 7/3

Answer 2

1/-21/18= 1x18/-21=-18/21