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Question

Mathematics Question on Relations and functions

In the group 1,2,3,4,5,6\\{1, 2, 3, 4, 5, 6\\} under multiplication mod 7,21×4=7, 2^{-1} \times 4 =

A

1

B

4

C

2

D

3

Answer

2

Explanation

Solution

Answer (c) 2