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Ex 1.1, 8 - Chapter 1 Class 8 Rational Numbers
Last updated at March 31, 2023 by Teachoo
Ex 1.1
Ex 1.1, 1 (i)
Ex 1.1, 1 (ii) Important
Ex 1.1, 2 (i)
Ex 1.1, 2 (ii)
Ex 1.1, 2 (iii) Important
Ex 1.1, 2 (iv)
Ex 1.1, 2 (v) Important
Ex 1.1, 3
Ex 1.1, 4 (i) Important
Ex 1.1, 4 (ii)
Ex 1.1, 4 (iii)
Ex 1.1, 4 (iv) Important
Ex 1.1, 4 (v) Important
Ex 1.1, 4 (vi)
Ex 1.1, 5
Ex 1.1, 6 Important
Ex 1.1, 7
Ex 1.1, 8 You are here
Ex 1.1, 9 Important
Ex 1.1, 10 (i) Important
Ex 1.1, 10 (ii) Important
Ex 1.1, 10 (iii)
Ex 1.1, 11 Important
Transcript
Ex 1.1, 8 Is 8/9 " the multiplicative inverse of" –11/8? Why or why not? − 1 1/8 = (−(1 × 8 + 1))/8 = (−(8 + 1))/8 = (−9)/8 We know that, Number × Multiplicative inverse of Number = 1 ∴ We need to check if, −11/8 × 8/9 = 1 Taking L.H.S –1 1/8 × 8/9 = (−9)/8 × 8/9 = −1 ≠ 1 Hence, 8/9 is not the multiplicative inverse of −1 1/8 as product is not 1.
