Question

Me ajudem por favorSimplifique;a) n!-(n-1)! /(n-2)!b) n!+(n+1)! /(n+2)!

Answer 1

a) n!-(n-1)! / (n-2)!
     
          n    / (n-2)! 



b) n! + (n+1)! /(n+2)!
    n! +  [ (n+1)! ] / (n+1)!(n+2)
    n! + 1/(n+2) 
    n! (n+2) = 1