In Maxima 5.5 GCL Windows.
trigsimp(sin(x)^2+cos(x)^2) fails to simplify, even though
the online doc explicitly says it "employs the identities
sin(x)^2 + cos(x)^2 = 1".
True, it also says "...so that further simplification may
be obtained by using TRIGREDUCE on the result".
I suggest removing the reference to the s2+c2=1
identity, and instead saying:
"normally TrigSimp should be followed by TrigReduce
and RatSimp or RadCan for full simplification"
I also think that something called TrigSimp should be
able to handle this case.... Perhaps its name should be
changed if it's less ambitious than a general
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