Question

a) 3^-1-1 supra 5=?; b) (-5 supra 6)^2:5 supra3;c) daca x supra 6= 12 supra 9,atunci x= ?

Answer 1

Răspuns

a) -2/15

b) 5/12

c) 8

Explicație pas cu pas:

a) (1/3-1)/5 = (-2/3)/5 = (-2/3)*(1/5) = -2/15

b) (25/36)*(3/5) = 5/12

c) x/6=12/9 => 9*x=12*6=72 => x=72/9=8