Jawabanmu

2013-12-10T00:51:34+07:00
Integral parsial :
 \int\limits {x^2.cosx} \, dx =(x^2-2).sinx+2x.cosx+C

f(x)=x^2-2, jadi f(2)=2^2-2=2
g(x)=2x, jadi g(3)=2.3=6

f(2)+g(3)=2+6=8
1 5 1