derive cross multiplication method?
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Definition and Formula
As the name itself suggests that this method uses cross multiplication technique in which the coefficients are cross multiplied in order to find the values of variables. This method is also known as Cramer's rule. According to this method:
Let us assume that a system of linear linear equations is given in the following form:
a1x+b1y+c1=0a1x+b1y+c1=0
and
a2x+b2y+c2=0a2x+b2y+c2=0
This system will have the unique solution when a1b1≠a2b2a1b1≠a2b2
As the name itself suggests that this method uses cross multiplication technique in which the coefficients are cross multiplied in order to find the values of variables. This method is also known as Cramer's rule. According to this method:
Let us assume that a system of linear linear equations is given in the following form:
a1x+b1y+c1=0a1x+b1y+c1=0
and
a2x+b2y+c2=0a2x+b2y+c2=0
This system will have the unique solution when a1b1≠a2b2a1b1≠a2b2
Answered by
3
hey mate !! derive cross multiplication means when two rational no.s are given and in that situation we cannot do it anything
..... this method helps.... but where is ur question ??.=.. hope this helps
..... this method helps.... but where is ur question ??.=.. hope this helps
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