A.x2ex B.ex C.xex D.(x+2)ex
A.lnx+c B.ln(x+C. C.c2+ln│x+c1│ D.c2-ln│x+c1│
A.1+x2=cy B.(1+x2)(3+2y)=c C. D.(1+x2)2(3+2y)=c