Q68.The point of intersection of the lines (a3 + 3)x + ay + a −3 = 0 and (a5 + 2)x + (a + 2)y + 2a + 3 = 0 (a real) lies on the y-axis for (1) no value of a (2) more than two values of a (3) exactly one value of a (4) exactly two values of a
What This Question Tests
To solve this, substitute x=0 (since the point of intersection lies on the y-axis) into both line equations and then solve the resulting system of equations for 'a'.
Concepts Tested
Formulas Used
(x,y) lies on y-axis => x=0
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📋 Question Details
- Chapter
- Straight Lines
- Topic
- Intersection of lines
- Year
- 2012
- Shift
- 07 May Online
- Q Number
- Q68
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 10: Straight Lines
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