The pair of equations x +2y=5 & 3x+12y =10 has
(a unique solution, no solution, more than 2 solutions, infinitely many
Solutions )
Answers
Answer:
it has a unique solution.
here, a1=1. b1=2. c1= -5
a2=3. b2=12. c2=-10
So ,
a1/a2=1/3
b1/b2=2/12=1/6
c1/c2= -5/-10=1/2
here ,
a1/a2 is not equal to b1/b2
Thus , it has a unique solution
Answer: The pair of linear equations has only one solution i.e. Unique solution.
Given the pair of equations
Equation 1 : x + 2y = 5
Equation 2 : 3x + 12y = 10
x + 2y - 5 = 0 and 3x + 12y - 10 = 0
It is to be found that whether the pair of equations has a unique solution, no solution or infinitely many solutions.
Number of solutions depend upon the relationship between the coefficients as,
a1x + b1y + c1 = 0
a2x + b2y + c2 = 0 are two linear equations then the relationship to be checked between,
a1/a2 , b1/b2 & c1/c2
As, 1/3 ≠ 2/12
1/3 ≠ 1/6
The pair of linear equations has one and only one solution i.e. unique solution.
To conclude in one sentence, the pair of linear equations has unique solution.
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