A(2, 6, 2), B(–4, 0, λ), C(2, 3, –1) and D(4, 5, 0), |λ| ≤ 5 are the vertices of a quadrilateral ABCD. If its area is 1

A(2, 6, 2), B(–4, 0, λ), C(2, 3, –1) and D(4, 5, 0), |λ| ≤ 5 are the vertices of a quadrilateral ABCD. If its area is 18 square units, then 5 – 6λ is equal to _____.

A(2, 6, 2), B(–4, 0, λ), C(2, 3, –1) and D(4, 5, 0), |λ| ≤ 5 are the vertices of a quadrilateral ABCD. If its area is 18 square units,

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