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

/* code_begins */

{{{
var('k')
g(x) = -k
p(x) = k
a0 = integrate(g(x)/1 , (x,-1,0))
p0 = integrate(p(x)/1 , (x,0,1))
G(x)=a0
P(x)=p0
for n in range(1,8):
	
	an1 = integrate(g(x)*cos(n*x)/1, (x,-1,0))
	bn1 = integrate(g(x)*sin(n*x)/1, (x,-1,0))
	an2 = integrate(p(x)*cos(n*x)/1, (x,0,1))
	bn2 = integrate(p(x)*sin(n*x)/1, (x,0,1))	
	G(x) = G(x)+an1*cos(n*pi/1*x) + bn1*sin(n*pi/1*x)
	P(x) = P(x)+an2*cos(n*pi/1*x) + bn2*sin(n*pi/1*x)
print G(x)+P(x)
}}}

/* code_ends */

 * '''Solution by''': 
   * SHUBHAM MITTAL, STUDENT, IIT ROORKEE
   * AMIT TEWARI, STUDENT, IIT ROORKEE
   * RACHIT JHA, STUDENT, IIT ROORKEE
   * ARNAB BASU, STUDENT, IIT ROORKEE