Involving cos and sinh
Involving cos(e z)sinh(d z)/a+b cosh(c z)
Involving cos(e z)sinh(d z)(a+b cosh(c z))-n
Involving cos(e z)sinh(d z)/a+b cosh2(c z)
Involving cos(e z)sinh(d z)(a+b cosh2(c z))-n