Jawabanmu

2014-08-17T23:15:03+07:00
Integral ((x^-2) - (x^-4)) dx
= -1/x +1/3x^3 dengan batas 1 sampai 2
= ( -1 /2 + 1/24) - (-1 + 1/3 )
= 1/2 - 7/3
= (3-14) / 6
= -11/6