||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
x=var('x')
mu=var('mu')
W=det(matrix([[x**mu*cos(2*log(x)),x**mu*sin(2*log(x))],[mu*x**(mu-1)*cos(2*log(x))-x**mu*2/x*sin(2*log(x)),mu*x**(mu-1)*2/x*cos(2*log(x))]]))       
W.simplify_rational()}}}

/* code_ends */

 * '''Solution by''': 
   * namdev,teaching,RGIT
   * dilip,teaching,RGIT