AP Board 8th Class Maths Notes Chapter 4 Exponents and Powers

Students can go through AP Board 8th Class Maths Notes Chapter 4 Exponents and Powers to understand and remember the concepts easily.

AP State Board Syllabus 8th Class Maths Notes Chapter 4 Exponents and Powers

Laws of Exponents:

→ a × a × a …… m times = am

In am, a is called base; m is called exponent/ power.

→ am × an = am+n

→ \(\frac{\mathrm{a}^{\mathrm{m}}}{\mathrm{a}^{\mathrm{n}}}\) = am-n (m > n)
⇒ \(\frac{1}{a^{n-m}}\) (m < n)

→ (ab)m = am . bm

→ a0 = 1

AP Board 8th Class Maths Notes Chapter 4 Exponents and Powers

→ a-n = \(\frac{1}{a^{n}}\)

→ an = \(\frac{1}{a^{-n}}\)

→ \(\left(\frac{a}{b}\right)^{m}\) = \(\frac{a^{m}}{b^{m}}\)

→ \(\left(a^{m}\right)^{n}\) = amn

AP Board 8th Class Maths Notes Chapter 4 Exponents and Powers 1

→ \(\sqrt[n]{a}\) = \((\mathrm{a})^{1 / \mathrm{n}}\)