I've found that sometimes, the TI-89 gives absurd answers that are right. For example, if I take the integral of (tan x)^6*(sec x)^2 the answer should be 1/7*(tan x)^7 However, the calculator pumps out some long and complex value. Nevertheless, it is equivilent to the answer. Does anyone know how to get the condenced value? And no, tCollect didn't do it.Hmm.