Exercise 2.3 Solved | 9th Math 2025 | Log/Antilog Tables & Scientific Notation | PCTB | Qais Ali скачать в хорошем качестве

Exercise 2.3 Solved | 9th Math 2025 | Log/Antilog Tables & Scientific Notation | PCTB | Qais Ali

📚 *Exercise 2.3 Solved | Chapter 2 (Logarithms) | 9th Class Math New Book 2025 (Punjab Board)!* *Qais Ali Khan* simplifies *logarithmic calculations* using *log/antilog tables* and explains the difference between **natural (ln) and common (log) logarithms**. 🔍 **Key Concepts Covered**: **Natural vs. Common Logarithms**: Definitions, bases (e vs. 10), and applications. **Scientific Notation**: Finding characteristic and mantissa. **Logarithm Tables**: Step-by-step usage to find log values. **Antilog Tables**: Calculating antilog to solve for \( x \). **Table Drawing**: Visual demonstration of log/antilog tables on a whiteboard. 📝 **Exercise 2.3 Solutions**: 1. **Logarithm of Numbers**: Use log tables to find values (e.g., log(0.025)). 2. **Matching Mantissas**: Solve using numbers with identical mantissas. 3. **Antilog Applications**: Find \( x \) in equations like \( \log x = 2.8573 \). 📌 **Perfect for Punjab Board Students**: Aligned with the **PCTB 2025 syllabus**, this tutorial demystifies log/antilog tables with practical examples. Master manual calculations for exams with Qais Ali Khan’s expert guidance! 0:00 intro 0:45 Common Log vs. Natural Log 7:48 Exercise - Question No. 01 17:04 Question No. 02 38:17 Question No. 03 45:32 Question No. 04