Integration of a trig funt
- To: mathgroup at yoda.physics.unc.edu
- Subject: Integration of a trig funt
- From: bappadit at ecn.purdue.edu (Banerjee Bappaditya)
- Date: Fri, 25 Jun 1993 15:05:03 -0500 (EST)
Hi!
I am trying to integrate
f[x] := 1/(a + b Cos[x])
for the case b > a.
So, I do
In[3]:= b > a
In[4]:= Integrate[f[x],x]
to get the INCORRECT answer
(-a + b) Sin[x]
-2 ArcTan[--------------------------]
2 2
Sqrt[a - b ] (1 + Cos[x])
Out[4]= -------------------------------------
2 2
Sqrt[a - b ]
which holds valid only for a > b.
Could anybody please let me know how to get the result corresponding to my
case ?
thanks,
bappa.
Bappaditya Banerjee
bappadit at mn.ecn.purdue.edu
Ray W. Herrick Laboratories
Purdue University
West Lafayette, IN 47907
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