Merging man & maths https://www.mathcity.org/ Thu, 04 Jun 2026 18:49:18 +0000 FeedCreator 1.8 https://www.mathcity.org/_media/logo.svg https://www.mathcity.org/ https://www.mathcity.org/math-11-nbf/sol/unit02/ex2-4 Exercise 2.4 (Solutions) The solutions of the Exercise 2.4 of book “Model Textbook of Mathematics for Class XI” published by National Book Foundation (NBF) as Federal Textbook Board, Islamabad, Pakistan are given on this page. This exercise consists of the question related to the determinant and properties of the determinant.$\left|\begin{array}{lll}9 & 27 & 36 \\ 18 & 54 & 24 \\ 27 & 81 & 28\end{array}\right|=0$$\left|\begin{array}{lll}1 / a & b c & b+c \\ 1 / b & a c & a+c \\ 1 / c & a b & a+… anonymous@undisclosed.example.com (Anonymous) Sun, 08 Feb 2026 16:46:40 +0000