Singular Matrix Trick in 60 Seconds! 🔥 | JEE Matrices
❓ Concept 🎬 Singular Matrix Trick in 60 Sec | JEE Matrices 2×2 matrix dikhi? Aur question bole “singular” ? 👉 Bas ek chhoti si identity yaad rakh lo — baaki saara game automatic ho jaata hai 🔥 🖼️ Concept Image ✍️ Short Explanation JEE mein “singular matrix” ka matlab definition-based hota hai. No heavy algebra, no tricks — sirf determinant logic . 🔹 Step 1 — Singular Matrix Meaning (CORE RULE 💯)** A matrix is singular ⟺ its determinant is zero . 📌 Yeh rule har order ke matrix ke liye true hai. 🔹 Step 2 — 2×2 Determinant Formula (MOST IMPORTANT 🔥)** For a 2×2 matrix: ( a b c d ) \begin{pmatrix} a & b\\ c & d \end{pmatrix} Determinant: ∣ A ∣ = a d − b c |A| = ad - bc So, Matrix is singular ⟺ a d = b c \boxed{\text{Matrix is singular } \Longleftrightarrow ad = bc} 👉 Bas yahi identity poore chapter ko control karti hai. 🔹 Step 3 — What These JEE Questions Are REALLY Doing Typical JEE statement: “Elements are chosen f...