👤

[(-1/2)la -2×3la -2+0,(6)]la -1 ×10

Răspuns :

[(-1/2)^-2 × 3^-2 + 0,(6)]^-1 × 10 =

= [1/(1/2)^2 × (1/3)^2 + 6/9]^-1 × 10 =

= (4 × 1/9 + 2/3)^-1 × 10 =

= (4/9 + 2×3/9)^-1 × 10 =

=[ (4+6)/9]^-1 × 10 =

= 1/10/9 × 10 =

= 9/10 × 10 =

= 9