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Find the solution of x^2≡ 2 mod 11

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Find the solution of x^2≡ 2 mod 11

(a) No Solution

(b) x ≡ 9 mod 11

(c) x ≡ 4 mod 11

(d) x ≡ 4 mod 11 and x ≡ 7 mod 11

I have been asked this question during an online exam.

This intriguing question comes from Number Theory topic in chapter More Number Theory of Cryptograph & Network Security

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Best answer
Right answer is (a) No Solution

Explanation: There is no solution possible on solving the congruency.

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