
title=4. Inverse composition II
sol=2
prompt=$m_f(x)
a0=0
!if $center!=0
 y0=!randitem -5,-4,-3,-2,-1,1,2,3,4,5
 t0=$y0
 A0=$y0+
!endif

!ifval $x0!=$y0
 voisi=$y0 et $x0 respectivement
!else
 voisi=$x0
!endif

parisrc=ser3=subst(ser2,x,ser1)
given=ser1 ser3
givenname1=$m_g(x)
givenname2=$m_f($m_g(x))
calcname=$m_f(x)&nbsp;.

