Class 9 Math Ex 2.4 Q5 (All Parts i-iv) Complete Solution | Use of Logarithm Tables | New Book 2025

Assalam-o-Alaikum, dear students! Welcome to Dr. M. Yousaf's official lecture for 9th Class Mathematics, fully aligned with the Punjab Curriculum & Textbook Board (PCTB) New Syllabus 2025. In this video, we completely solve Question 5 (Parts i, ii, iii, and iv) of Exercise 2.4 from Unit 2. Learn how to find the values of complex fractional and exponential expressions using common logarithm tables and antilogarithm tables step-by-step! PROBLEMS SOLVED: (i) (3.68 * 4.21) / 5.234 (ii) 4.67 * 2.11 * 2.397 (iii) ((20.46)^2 * 2.4122) / 754.3 (iv) (∛(9.364) * 21.64) / 3.21 TIMELINE / CHAPTER TIMESTAMPS: 00:00 – Introduction to Exercise 2.4 Question 5 & Method of Logarithmic Calculations 01:06 – Question 5 (i): Logarithmic Calculation of Fractional Expressions 20:44 – Question 5 (ii): Multiplication of Three Numbers Using Logarithms 29:02 – Question 5 (iii): Handling Powers and Large Denominators with Logs 39:00 – Question 5 (iv): Cube Roots and Division using Log Tables Don't forget to Like, Share, and Subscribe to @Dryousaf001 for more board-aligned math lectures! #9thMath #Exercise2_4 #LogarithmTable #PCTB2025 #DrMYousaf #PunjabBoard