Exponents of Real Number - Class 9th CBSE || Concept & Laws with Video Lectures

What is Exponent ?

The number of times a number is multiplied by itself is called the exponent of any number. For any number 'a' and a positive integer n, we define aⁿ as
aⁿ = a×a×a×a×….×a ( n times )
Here, the a is called the base and n is called the exponent of n^th power of a.

Laws of Integral Exponents

First Law : a^m × aⁿ = a^m+n

Second Law :

a^m/ aⁿ

= a^m-n

Third Law : (a^m)ⁿ = a^mn

Fourth Law : (ab)ⁿ = aⁿbⁿ

Fifth Law : a⁰ = 1

Laws of Rational Exponents

First Law : a^m × aⁿ = a^m+n

Second Law :

a^m/ aⁿ

= a^m-n

Third Law : (a^m)ⁿ = a^mn

Fourth Law : (ab)ⁿ = aⁿbⁿ

Fifth Law : a^m/n = (ⁿ√a)^m

Fifth Law : a⁰ = 1

Exponents - Important Questions

Exponents of Real Number - 9th - Important Notes

Exponents of Real Number - 9th - Worksheet

Exponents Revision Quiz

Class 9th

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