Question

claculati (8/56 - 4/radical 24 - 16/15radical 6 )-(8/3radical 54 - 6/radical 54)​

Answer 1

Răspuns:

-16/45 rad6  

Explicație pas cu pas:

  (8/5 rad 6 - 4/rad 24 - 16/15 rad 6) - (8/3 rad 54 - 6/rad 54) =  

= (8/5 rad 6 - 4/2rad 6  - 16/15 rad 6) - (8/9 rad 6 - 6/3 rad6) =  

= (8/5 rad 6 - 2/rad 6 - 16/15 rad 6) - (8/9 rad6 - 18/9 rad6) =  

= (24/15 rad6 - 30/15 rad 6 - 16/15 rad6) - (-10/9 rad6) =

= (-22/15 rad 6) + 10/9 rad 6 = -66/45 rad 6 + 50/45 rad 6 =

= -16/45 rad6