DAV Class 7th Maths Chapter 4 Worksheet 1 || DAV Class 7th Maths Chapter 4 Worksheet 2
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- Опубліковано 10 жов 2024
- DAV Class 7th Maths Chapter 4 Worksheet 1 || DAV Class 7th Maths Chapter 4 Worksheet 2
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Descriptions for DAV Class 7th Maths Chapter 4:- Exponents and Powers:
1. Introduction to Exponents:
Exponents are a way to express repeated multiplication of a number by itself. For example:-
The number being multiplied is called the base, and the number of times it’s multiplied is the exponent or power.
2) Laws of Exponents:-
Multiplying Powers with the Same Base
Dividing Powers with the Same Base: , where
Power of a Power
Multiplying Powers with the Same Exponent
Power of a Product
3) Negative Exponents:-
A negative exponent represents the reciprocal of the base. For example, where .
4) Standard Form and Scientific Notation:-
Large numbers are often expressed in standard form or scientific notation for simplicity. For example, represents 4,500,000.
It’s a way to easily manage very large or small numbers using powers of 10.
5) Applications of Exponents:-
Exponents are widely used in scientific calculations, estimating large numbers, and in various fields like physics, engineering, and computer science.
6) Simplification Using Exponents:-
Simplifying expressions using exponents reduces the complexity of mathematical problems and makes calculations easier, especially in algebraic contexts.
This chapter builds a strong foundation in understanding powers and exponential relationships, which are essential in higher classes.
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