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CSIR-UGC NET

Practice

Algebra

Fundamental Theory of Arithmetic

Quick practice

Question 1 of 5

Let F be a field of 8 elements and A=\left\{x \in F | x^{7}=1 \ { and } \ x^{2} \neq 1\right. for all natural numbers k>7) Then the number of elements in A is 

A

6

B

2

C

3

D

1

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