Relations and Functions — Class 12 Maths Solution

ncert exercise SA NCERT Ex. 1.4,Q.5, Page 25

Question

Let $*$ be binary operation on the set $\{1, 2, 3, 4, 5\}$ defined by a $*$' b $=$ H.C.F. of a and b. Is the operation $*$' same as the operation $*$ defined in Q. 4 above? Justify your answer.

Step-by-step Solution

Let A $= \{1, 2, 3, 4, 5\}$

a$*$' b $=$ HCF of a and b is given by

We observe that the operation $*$' is the same as the operation $*$ in Q. 4.

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