Exercise 1.1 answer

Answers Q.1)ans. 1) 2 ans. 2)-11/28 ans. Q.2)ans. 1) -2/8 2) 5/-9 3)6/5 4)-2/9 5) -19/6 Q.3)ans 1) 11/15 = 11/15 2) -13/17 = -13/17 Q.4)ans. 1)1/-13 2)19/-13 3)5/1 4)56/-15 5)5/2 6) 1/-1 Q.5)ans. 1) -4/5 = -4/5 = -4/5 : This is commutative property under multplication. 2) -13/17 * -2/7 = -2/7 * -13/17 :This is commutative propertu under multplication. 3)1=1 : This is multiplicative inverse under multiplication. Q.6) ans.-96/91 Q.7) 1/3 * 6 * 4/3 as 1/3 * 6 * 4/3 : Associativity. Ans. Q.8) No because = -1 1/8 -8 + 1/8 = -7/8 = 9/8 ans. Q.9) yes, 3 1/3 = 10/3 = 3/10 =0.3 :. ( Multiplicative inverse ) Ans. Q.10)ans. 1) 0 2) 1and -1 3) 0 Q.11) ans. 1) no 2) 1 and -1 3) -1/5 4) x 5) Rational number 6) positive