Dau coronita îmi trebuie urgent! ! ! ! ex.1

a)[tex]5^{3} - 4^{3} = 125 - 64 = 61\\[/tex]
b)[tex](9-8)^{2017} =1^{2017} =1\\[/tex]
c)[tex]1^{2001} +2002^{1} = 1 + 2002 = 2003[/tex]