Question

A Differential equation is considered to be ordinary differential equation, if it has (A) one dependent variable (B) more than one dependent variable (C) one independent variable (D) more than one independent variable

Answer 1

Solution

The correct answer is (C).

A differential equation is considered to be ordinary if it has one independent variable. Ordinary

differential equations can have as many dependent variables as needed. For example the

ordinary differential equations

( )

33 ( ) ( ) 70 ,50 ,sin

2 60 ,

2

2

=++ ==

==++

dx

dz

zx

dx

dz

y dx

zd

yezy dx

dy x

have two dependent variables y and z, and one independent variable, x.

Answer 2

Answer:

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