If n is the number of real solutions of the equation min(e−|x|,1−e−|x|)=14 and L=limx→0−(e2x−1x+e3x−1x+e4x−1x+⋯ upto n terms), then the value of L is
Let I =∫exe4x+e2x+1dx.J=∫e−xe−4x+e−2x+1dx,Then, for an arbitrary constant c, the value of J-I equals