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in Mathematics by (57.7k points)

If △= | [ (1, -sinθ, -1), ( sinθ, 1, -sinθ), (1, sinθ, 1) ] | , then for all  θ ∈ R 

(A) 0 ≤ △ ≤ 2 

(B) 0 ≤ △ ≤ 1 

(C) 2 ≤ △ ≤ 4 

(D) 2 ≤ △ ≤ 6

1 Answer

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Best answer

Correct Option :-  (C)

Explanation :-

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