TI-M: Ooh...'nother integral question :)


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TI-M: Ooh...'nother integral question :)




Although it's not really necessary for the calculus class I'm taking, I would 
be interested in knowing how to integrate sin(x)^n dx / (sin(x)^n + cos(x)^n) 
for n = 3, 5, and 7.  I figured out how to do it for n = 1 (found it 
challenging) and for n = 2 (easier...), but for n = 3 stumped me (the TI-89 
was able to do it though).  For n = 5, it's a big ass antiderivative (89 did 
that one, too); I wouldn't really expect anyone to do that by hand, but you 
never know what aspiring souls are out there...  For n = 7, I have no idea 
what the function is, since the TI-89 isn't able to do this one (within a 
reasonable amount of time...).  I might try n = 4 before the homework is due 
on Tuesday...

Thanks in advance for any comments,

JayEll