# Ex 13.2, 2 (ii) - Chapter 13 Class 7 Exponents and Powers

Last updated at Sept. 7, 2021 by Teachoo

Last updated at Sept. 7, 2021 by Teachoo

Transcript

Ex 13.2, 2 Simplify and express each of the following in exponential form: (ii) ((5^2 )^3×5^4 )÷5^7 ((52)3 × 54) ÷ 57 = ((5^2 )^3× 54)/5^7 Using, (am)n = 𝑎^(𝑚 − 𝑛) = (5^(2 × 3) × 5^4)/5^7 = (5^6 × 5^4)/5^7 Using am × an = am + n = 5^(6 + 4)/5^7 = 5^10/5^7 Using, 𝑎^𝑚/𝑎^𝑛 = 𝑎^(𝑚 − 𝑛) = 510 − 7 = 53

Ex 13.2

Ex 13.2, 1 (i)

Ex 13.2, 1 (ii)

Ex 13.2, 1 (iii)

Ex 13.2, 1 (iv)

Ex 13.2, 1 (v)

Ex 13.2, 1 (vi)

Ex 13.2, 1 (vii)

Ex 13.2, 1 (viii)

Ex 13.2, 1 (ix)

Ex 13.2, 1 (x)

Ex 13.2, 2 (i) Important

Ex 13.2, 2 (ii) You are here

Ex 13.2, 2 (iii)

Ex 13.2, 2 (iv)

Ex 13.2, 2 (v)

Ex 13.2, 2 (vi)

Ex 13.2, 2 (vii)

Ex 13.2, 2 (viii)

Ex 13.2, 2 (ix)

Ex 13.2, 2 (x)

Ex 13.2, 2 (xi)

Ex 13.2, 2 (xii)

Ex 13.2, 3 (i)

Ex 13.2, 3 (ii)

Ex 13.2, 3 (iii)

Ex 13.2, 3 (iv)

Ex 13.2, 4 (i)

Ex 13.2, 4 (ii)

Ex 13.2, 4 (iii)

Ex 13.2, 4 (iv)

Ex 13.2, 5 (i) Important

Ex 13.2, 5 (ii)

Ex 13.2, 5 (iii)

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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.