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


{{{
var('y,b,c')
y=-cos(2*x)
b=diff(y,x,2)+3*diff(y,x)-4*y
c=8*cos(2*x)+6*sin(2*x)
bool(b == c)
}}}



 * '''Solution by''': 
   * <YASHWANTH>, <STUDENT>, <SNIST>
   *<SREE LAKSHMI>, <STUDENT>, <SNIST>