FMn(c) = p(Mn<=c)=p(max(U1,U2, . . ,Un))=p((U1<=c) and (U2<=c} and . . . .(Un<=c)) = p(U1<=c)p(U2<=c).....p(Un<=c)

fUi(x) = 1 if 0<x<1

0 otherwise

for c<=0 p(Ui<=c)= 0

for 0<c<1 p(Ui<=c)= c

for c>=1 p(Ui<=c)= 1

so

FMn(c)= 0 if c<=0

c^n if 0<c<1

1 if c>=1

is this right . . . . . . . .