additive identity and multiplicative identity

Additive Identity and Multiplicative Identity | Class 9 Mathematics (New Book)

In this online lecture, Sir Amir Javed explains the vital concepts of Additive Identity and Multiplicative Identity. This topic is a key part of Unit 1: Real Numbers from the New Class 9 Math Book (Syllabus 2025-2027) for the Punjab Board (PCTB).
Understanding identity elements is crucial for simplifying algebraic equations and scoring full marks in the objective/MCQ section of your board exams. Sir Amir breaks down why 0 and 1 hold these special properties with clear, step-by-step examples.

What You Will Learn:

What is an Identity Element in Mathematics?

Additive Identity: Why adding 0 to any real number leaves it unchanged (a + 0 = a).

Multiplicative Identity: Why multiplying any real number by 1 keeps it the same (a +1 = a).
Practical textbook examples and how these identities are tested in exams.

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Видео additive identity and multiplicative identity канала Math With Sir Amir Javaid