A) \[7\]
B) \[3\]
C) \[9\]
D) \[1\]
Correct Answer: B
Solution :
Now,\[7{{\times }_{10}}3\equiv \,1\,\,\bmod 10\] (given) which gives the identity element. Hence, the inverse of 7 is 3 under the given operation.You need to login to perform this action.
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