**2. ** We know that addictive inverse of a rational number

⇒ L.H.S. = R.H.S

Hence, verified.

⇒ L.H.S. = R.H.S

Hence, verified.

**4. ** We know that multiplicative inverse of a rational number a is

**5. ** (i) 1 is the multiplicative identity.

(ii) Commutative property.

(iii) Multiplicative inverse property.

According to the question,

**7.** By using associative property of multiplication, we will computes as a × (b × c) = (a × b) × c.

**8. ** Since multiplicative inverse of a rational number

But its product must be positive 1.

Therefore, is not he multiplicative inverse of

**9. ** Since multiplicative inverse of a rational number

Therefore, Yes 0.3 is the multiplicative inverse of

**10. ** (i) 0

(ii) 1 and -1

(iii) 0

**11. ** (i) No

(ii) 1, -1

(iv) x

(v) Rational number

(vi) Positive.

Here, L.C.M. of 5 and 2 is 10.

**17.** Five rational numbers greater than -2 are: