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CLASS-10 CHAPTER-3 PAIR OF LINEAR EQUATIONS IN TWO VARIABLES
EXERCISE -3.2 QUE-2,3 (IMPORTANT) 👍

TO FIND THE SOLUTION OF EQUATION WE HAVE TO COMPARE RATIOS OF EQUATIONS

Let the two equations be:
a1x + b1y + c1 = 0
a2x + b2y + c2 = 0
Then,

Relationship between coeff. or the pair of equationsGraphNumber of SolutionsConsistency of System
*a1/a2≠b1/b2
Intersecting lines.
Unique solution
Consistent

*a1/a2=b1/b2≠c1/c2
Parallel lines
No solution
Inconsistent

*a1/a2=b1/b2=c1/c2
Co-incident lines
Infinite solutions
Consistent

AND FROM THIS VIDEO YOU CAN EASILY UNDERSTAND THE CONCEPT
   • CLASS-10 CHAPTER-3 SOLVING LINEAR EQUATION...  👍

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