Question

1. Verify that a (-b) = a + b for the following values of a and b.
and b=
--2
2. Find ten rational numbers between- and


3. Is 0.7 the multiplicative inverse of 1. ? Justify ​

Answer 1

(i) a = 21, b = 18

a – (-b)  = 21-(-18)

21-(-18) = 21 + 18

21+18= 39

a + b = 21+18

21+18 = 39

21-(-18) = 21+18 = 39

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