# Ex 12.1, 3 (ii) - Chapter 12 Class 8 Exponents and Powers

Last updated at Sept. 9, 2021 by Teachoo

Last updated at Sept. 9, 2021 by Teachoo

Transcript

Ex 12.1, 3 Find the value of. (ii) (2^(−1)× 4^(−1)) ÷〖 2〗^(−2) (2^(−1)× 4^(−1)) ÷〖 2〗^(−2) = (2×4)^(−1) ÷〖 2〗^(−2) = (8)^(−1) ÷〖 2〗^(−2) = 8^(−1)/2^(−2) = 8^(−1)×1/2^(−2) = 1/8^1 ×2^2 = (2 × 2)/8 (𝑈𝑠𝑖𝑛𝑔 𝑎^𝑚×𝑏^𝑚=〖(𝑎×𝑏)〗^𝑚 ) = 4/8 = 𝟏/𝟐

Ex 12.1

Ex 12.1, 1 (i)
Important

Ex 12.1, 1 (ii)

Ex 12.1, 1 (iii)

Ex 12.1, 2 (i) Important

Ex 12.1, 2 (ii)

Ex 12.1, 2 (iii)

Ex 12.1, 2 (iv)

Ex 12.1, 2 (v)

Ex 12.1, 3 (i) Important

Ex 12.1, 3 (ii) You are here

Ex 12.1, 3 (iii)

Ex 12.1, 3 (iv)

Ex 12.1, 3 (v)

Ex 12.1, 4 (i)

Ex 12.1, 4 (ii)

Ex 12.1, 5

Ex 12.1, 6 (i)

Ex 12.1, 6 (ii)

Ex 12.1, 7 (i) Important

Ex 12.1, 7 (ii)

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.