Request a call back

Consider the binary operation * on the set {1, 2, 3, 4, 5} defined by a*b=HCF of a andb. Write the operation table of the operation *. Is * commutative? Justify. Also, compute: (a) (2*3)*5 (b) (2*3)*(4*5).
Asked by niharikapabba2605 | 12 Oct, 2018, 07:21: PM
According to the question, binary operation on the set {1, 2, 3, 4, 5} can be given as follows where a*b = HCF of a and b
(2*3)*5
= 1 * 5                 HCF of 2 and 3 is 1
= 1                       HCF of 1 and 5 is 1
Answered by Sneha shidid | 15 Oct, 2018, 10:41: AM

## Concept Videos

CBSE 12-science - Maths
Asked by surajkumar85440 | 23 Nov, 2021, 10:30: AM
CBSE 12-science - Maths
Asked by goswamineha2611 | 31 Aug, 2020, 06:32: PM
CBSE 12-science - Maths
Asked by alanpeter9611 | 12 Feb, 2019, 06:08: PM
CBSE 12-science - Maths
Asked by niharikapabba2605 | 12 Oct, 2018, 07:21: PM
CBSE 12-science - Maths
Asked by haroonrashidgkp | 07 Jun, 2018, 11:03: AM
CBSE 12-science - Maths
Asked by Topperlearning User | 25 Apr, 2016, 08:38: AM