defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Determinants Evaluation of Determinants
If ∆ = \(\left|\begin{array}{lll}1 & a & a^{2} \\ 1 & b & b^{2} \\ 1 & c & c^{2}\end{array}\right|\) = K(a − b)(b − c)(c − a), then K =
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