D.E. Prelim Summative Test

• Common Factor

• Integrating Factor

• Quadratic Factor

• Natural Factor

What do you call the highest derivative occurring in a differential equation?

• Degree

• Exponent

• Order

• Power

• It is the number of new-born babies at any time .

• It is a function that gives the number of individuals in a population at any time .

• It is the number of deaths occurring at any time .

• It is the number of individuals with ages beyond .

What are equations containing a function and its derivatives?

• Differential Equation

• Functional Equation

• Integral Equation

• Linear Equation

Which of the following is a differential equation?

What form can an ODE take if it is separable?

Which condition must the differential equation satisfy for it to be exact?

What method is used in solving homogeneous ODEs?

• Transformation of Variables

• Separation of Variables

• Test of Exactness

• Method of Substitution

The difference between the rate at which fluid flows into the substance and the rate at which it flows out is equal to which of the following?

• Net rate of change in viscosity of substance at any given time

• Net rate of change in amount of substance at any given time

• Net rate of change in speed of substance at any given time

• Net rate of change in temperature of substance at any given time