1.

Which of the following correctly defines ordinary differential equations?

A. A differential equation in which a dependent variable (say y ) depends on only one independent variable (say x )
B. A differential equation in which an independent variable (say y ) depends on only one dependent variable (say x )
C. A differential equation in which a dependent variable (say y ) depends on one or more independent variables (say x , t etc.)
D. A differential equation in which an independent variable (say y ) depends on one or more dependent variables (say x , t etc.)
Answer» B. A differential equation in which an independent variable (say y ) depends on only one dependent variable (say x )


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