Re: Please help carry out the integral
- To: mathgroup at smc.vnet.net
- Subject: [mg71739] Re: Please help carry out the integral
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Tue, 28 Nov 2006 06:03:51 -0500 (EST)
- Organization: The Open University, Milton Keynes, UK
- References: <ekecgi$k9$1@smc.vnet.net>
aaronfude at gmail.com wrote:
> Hi,
>
> I need to integrate the following expression in x from 0 to c, assuming
> all parameters are positive.
>
> x*(-Log[Sqrt[d^2 + x^2] + x*Cos[\[Alpha]]] + Log[a - (a*x)/c +
> x*Cos[\[Alpha]] + Sqrt[(a^2*(c - x)^2 + c^2*(d^2 + x^2) + 2*a*c*(c -
> x)*x*Cos[\[Alpha]])/c^2]])
f being your expression, the following line should be a good start:
Assuming[a > 0 && c > 0 && d > 0 && \[Alpha] > 0, Integrate[f, {x, 0, c}]]
Regards,
Jean-Marc