Question
What advantage does Cramer’s rule have over other methods?
Asked by: USER8135
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58 Answers
Answer (58)
1. This method is very easy to remember steps.
2. Gives an opportunity to find only one needed variable, for example you have system with 3 variables [tex]x_1, x_2, x_3[/tex] and three equations and want to find only [tex]x_2[/tex]. The Cramer's rule allows to do this very quickly and easily.
3. If any of the values of [tex]x_1, x_2, x_3[/tex] are fractions, you do not have to plug in a fraction to find the other values. Each value can be found independently.
2. Gives an opportunity to find only one needed variable, for example you have system with 3 variables [tex]x_1, x_2, x_3[/tex] and three equations and want to find only [tex]x_2[/tex]. The Cramer's rule allows to do this very quickly and easily.
3. If any of the values of [tex]x_1, x_2, x_3[/tex] are fractions, you do not have to plug in a fraction to find the other values. Each value can be found independently.
Answer:
helpful for finding only one variable in larger systems
easy for computers and calculators to use
good to use for larger systems