If c = 2 cos θ, then the value of the determinant \\Delta=|\table c,1,0;1,c,1;6,1,c| is

Correct Answer is : None of these

\frac{\sin 4\\theta}{\sin \\theta}

\frac{2\sin^2 2\\theta}{\sin \\theta}

4 \cos ^{2} \\theta(2 \cos \\theta-1)

Manipal Entrance Test 2019 Math Paper

Question : 11 of 70

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If c = 2 cos θ, then the value of the determinant Δ=|

| is

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