JEE Mains 2026: System of Linear Equations for lies on line | Matrices & Determinants

Struggling with the System of Linear Equations in Matrices and Determinants? In this detailed masterclass, we break down Cramer's Rule from scratch to help you secure those guaranteed 4 marks in JEE Main! What you will learn in this video: ✅ Complete Statement & Conditions of Cramer's Rule (Consistent vs. Inconsistent systems). ✅ How to identify Infinitely Many Solutions vs. No Solution conditions easily. ✅ Step-by-step whiteboard solution of a high-yielding JEE Main problem. If you are a JEE aspirant aiming for top scores in Math, this clear, step-by-step guide is exactly what you need to build absolute conceptual clarity. 📌 Timestamps: 0:00 - Introduction & Problem Overview 1:57 - Cramer's Rule Formula (Theory Summary) 3:16 - Three Conditions: Unique, No Solution & Infinite Solutions 5:34 - Calculating the Main Coefficient Determinant (Finding 'a') 8:42 - Why Use Δz over Δx? (Smart Calculation Strategy) 9:06 - Calculating the Auxiliary Determinant (Finding 'b') 13:43 - Testing Coordinates against Options (Final Answer Verification JEE Playlist:    • JEE MAINS and ADVANCED   #JEEMain #MatricesAndDeterminants #CramersRule #JEEMath #IITJEE #Class12Math #JEEMain2026 #MathsTricks