There are two ways of describing, or specifying the members of, a set. One way is by intensional definition, using a rule or semantic description:
The second way is by extension - that is, listing each member of the set. An extensional definition is denoted by enclosing the list of members in curly brackets:
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The elimination method and the substitutionmethod.
Be careful of extraneous words: it is called "writing" not "the writing process."
The empty set is a subset of all sets. No other sets have this property.
The Runge-Kutta method is one of several numerical methods of solving differential equations. Some systems motion or process may be governed by differential equations which are difficult to impossible to solve with emperical methods. This is where numerical methods allow us to predict the motion, without having to solve the actual equation.
Find the domain of the relation then draw the graph.