# Example 9 (ii) - Chapter 12 Class 8 Exponents and Powers

Last updated at Sept. 8, 2021 by Teachoo

Last updated at Sept. 8, 2021 by Teachoo

Transcript

Example 9 Express the following numbers in usual form. (ii) 7.54 × 〖10〗^(−4) 7.54 × 〖10〗^(−4) = 754/100 × 〖10〗^(−4) = 754/〖10〗^2 × 〖10〗^(−4) = 754/〖10〗^2 × 1/〖10〗^4 = 754/〖10〗^(2 + 4) = 754/〖10〗^6 = 𝟎.𝟎𝟎𝟎𝟕𝟓𝟒 (Using 𝑎^𝑚×𝑎^𝑛=𝑎^(𝑚 + 𝑛))

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