Q72.The number of elements in the set {x ∈R : (|x| −3)|x + 4| = 6} is equal to (1) 3 (2) 2 (3) 4 (4) 1
What This Question Tests
This question requires solving an equation involving multiple modulus functions by considering different cases based on the sign of the expressions inside the modulus, leading to several quadratic equations.
Concepts Tested
Formulas Used
|x| = x for x>=0, -x for x<0
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📋 Question Details
- Chapter
- Quadratic Equations
- Topic
- Equations involving modulus function
- Year
- 2021
- Shift
- 16 Mar Shift 1
- Q Number
- Q72
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 6: Linear Inequalities (understanding absolute value)
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