Any help on this would really be appreciated.
Is it really a bug in complexNormalize?

--S 5 of 14
aa:=integrate(sinh(a*x)^2*cosh(a*x)^2,x)
--R 
--R
--R                          3            3
--R        cosh(a x)sinh(a x)  + cosh(a x) sinh(a x) - a x
--R   (1)  -----------------------------------------------
--R                               8a
--R                                          Type: Union(Expression Integer,...)
--E 

--S
bb:=sinh(4*a*x)/(32*a)-x/8

        sinh(4a x) - 4a x
   (2)  -----------------
               32a
                                                     Type: Expression Integer
--E

--S
cc:=complexNormalize(aa-bb)

   (3)  0
                                                     Type: Expression Integer
--E
@
{\bf NOTE}, that if we compute this ``same'' expression directly
we get a different answer. This appears to be a bug.
--S
dd:=complexNormalize(integrate(sinh(a*x)^2*cosh(a*x)^2,x)-sinh(4*a*x)/(32*a)-x/8)

          x
   (4)  - -
          4
                                                     Type: Expression Integer
--E
@


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