Exponents and Powers

**Laws of rational exponents of real numbers:**

Let *a* and *b *be two real numbers and *m* and *n *be two rational numbers then

**Example:**

- If a natural number
*m*can be expressed as*n*^{2}, where*n*is also a natural number, then*m*is a square number. The square numbers are also called**perfect squares.**

Examples: 1, 4, 9, 16, 25, 36 … are perfect squares.

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