d :1: Which of the following functions can be used as an integrating factor to transform the differential 222?! + 1/ dz: 111(2)) = 2:6 into an exact equation? 0 $1116) 0 :c 111%) O :0 1m) 0 111%) dy The general solution of the differential equation ty = e * has the form dx O y = OO H e -92 + ce O y = e -8x + ce O y = 8 O - 20 y = 1 -8x + ce 8 -e 1 O y = e -92 + cel 8