If x2+ y2=1, then : (A) yy'\" - 2(y ' )2+1=0(B) yy'' + (y ' )2+1=0 (C) yy \" = (y ' )2-1=0(D) yy''+2(y ' )2+1=0

pallavi pradeep bhardwaj , 15 Years ago

Grade 12