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Ex 12.1, 6 (i) - Chapter 12 Class 8 Exponents and Powers
Last updated at March 23, 2023 by Teachoo
Ex 12.1
Ex 12.1, 1 (i)
Ex 12.1, 1 (ii)
Ex 12.1, 1 (iii) Important
Ex 12.1, 2 (i)
Ex 12.1, 2 (ii) Important
Ex 12.1, 2 (iii)
Ex 12.1, 2 (iv) Important
Ex 12.1, 2 (v)
Ex 12.1, 3 (i)
Ex 12.1, 3 (ii) Important
Ex 12.1, 3 (iii) Important
Ex 12.1, 3 (iv)
Ex 12.1, 3 (v) Important
Ex 12.1, 4 (i) Important
Ex 12.1, 4 (ii)
Ex 12.1, 5 Important
Ex 12.1, 6 (i) Important You are here
Ex 12.1, 6 (ii)
Ex 12.1, 7 (i) Important
Ex 12.1, 7 (ii)
Transcript
Ex 12.1, 6 Evaluate (i) {(1/3)^(−1)−(1/4)^(−1) }^(−1) {(1/3)^(−1)−(1/4)^(−1) }^(−1) = {1^(−1)/3^(−1) − 1^(−1)/4^(−1) }^(−1) = {1/3^(−1) − 1/4^(−1) }^(−1) = (3^1−4^1 )^(−1) = (3−4)^(−1) = (−1)^(−1) (𝑈𝑠𝑖𝑛𝑔 (𝑎/𝑏)^𝑚=𝑎^𝑚/𝑏^𝑚 ) (1 to the power any number is 1) = 1/(−1)^1 = 1/(−1) = −𝟏
