| Exam Board | OCR |
|---|---|
| Module | C3 (Core Mathematics 3) |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Inequalities |
| Type | Solve absolute value inequality |
| Difficulty | Standard +0.8 This modulus inequality requires systematic case analysis by considering critical points where expressions equal zero, then solving and checking validity across multiple intervals. While the algebraic manipulation is straightforward, the multi-case approach and need to combine solution sets makes this more demanding than typical C3 questions. |
| Spec | 1.02l Modulus function: notation, relations, equations and inequalities1.02t Solve modulus equations: graphically with modulus function |
Solve the inequality $|4x - 3| < |2x + 1|$. [5]
\hfill \mbox{\textit{OCR C3 Q2 [5]}}