A) y=8×+c
B) y=8ecx
C) y=Ce8x
D) y=4x2 + C
E) y=82+c

A) y' cosx - ycosx = 0
B) sinx - cosx = 0
C) y' sinx - ycosx = 0
D) y" sinx - ycosx = 0
E) none

A) 2xdx +(y+2x2)dy = 0
B) 2xydx - (y+2x2)dy = 0
C) 2xydx - (y+ 2x2)dy = 0
D) 2xydx - (y -2x2)dy = 0
E) 2xydx + (y+ 2x2)dy = 0

A) y"-y -2x3= 0
B) y" - y + 2x = 0
C) y" - y - 2x = 0
D) y" + y + 2x = 0
E) none

A) Partial DE
B) Ordinary DE
C) none
D) Exact DE
E) Linear DE

A) none
B) The degree of the equation.
C) The highest order derivative appear on the equation
D) The number of constants in the equation.
E) The number of variables in the equation.

A) x"+ w = 0
B) x" + w2x =0
C) x" - w2x = 0
D) w2x=0
E) x"= 0

A) 2x-3y=0
B) y"+y=0
C) y" - y' + 6y = 0
D) y"=0
E) none

A) -1/y=3x+c
B) -1/y=3x2 + c
C) -y=3x2 + c
D) 1/y=3x2+c
E) y' =3x2 + c

A) Add constants if needed
B) Integrate one side with respect to y and the other side with respect to x.
C) none
D) Simplify
E) Move all the y terms (including dy) to one side of the equation and all the x terms (including dx) to the other side.

A) twice
B) three times
C) once
D) none
E) It depends on the equation

A) 2
B) 0
C) 1
D) 3
E) none

A) Independent variable
B) Dependent variable
C) none
D) Independent variable
E) undefined

A) x3 (y')2 + x2yy'= 0
B) x3y2 - x2yy' + 4 = 0
C) none
D) x2yy'+ 4 = 0
E) x3 (y')2 + x2yy' + 4 = 0

A) 6y = 0
B) y' - 6y = 0
C) y" - y' + 6y = 0
D) y" - y' - 6y = 0
E) y" + y' + 6y = 0

A) third order, 20th degree
B) first order, 20th degree
C) 20th order, fourth degree
D) none
E) fourth order, first degree

A) none
B) Partial with a 2nd order DE
C) Ordinary with a 2nd degree DE
D) Linear DE
E) Ordinary DE

A) Partial with a 2nd order DE
B) Ordinary DE
C) Ordinary with a 2nd degree DE
D) Linear DE
E) none

A) 2
B) 1
C) 4
D) 0
E) 3

A) Linear DE
B) Exact DE
C) Ordinary DE
D) None
E) Partial DE