please somebody should help me with how to solve complex integrals like the equations below.

1. P(UCS|µ,σ)=1/(σUCS√2Π) exp{-1/2 [(In(UCS)-µ)/σ]^2 }


2. P(Data׀µ,σ)=1/(√((1.587σ )^2+(1.352 )^2 ) √2Π) exp{-1/2 [(ξ-(1.352µ-1.044))/√((1.587σ )^2+(1.352 )^2 )]^2 }

Thank you, I would be waiting for your reply.