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Lines
- August 13, 2020
- Category: Lines
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☼ LINES ☼
☼ Cramer’s Rules :
If l1 : a1x + b1y + c1 = 0
and l2 : a2x + b2y + c2 = 0
( Where, ai, bi, ci are real numbers and : i = 1, 2 )
(i) Intersecting Lines :– If , then lines l1 and l2 are intersecting.
In this case, we get the unique solution ( say point P ).
This unique solution, P =
(ii) Parallel Lines :– If , then lines l1 and l2 are parallel.
In this case, we get the no solution.
i.e. The Solution Set =
(iii) Identical Lines :– If , then lines l1 and l2 are identical.
In this case, we get infinite solutions.
i.e. The Solution Set = { ( x, y ) / a1x + b1y + c1 = 0 : x, y R }