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Vertices of a triangle are given by hat(...

Vertices of a triangle are given by `hat(i) + 3hat(j) + 2hat(k), 2hat(i) - hat(j) + hat(k) and -hat(i) + 2hat(j) + 3hat(k)`, then the area of triangle is `sqrt((107)/(2n))` (in units). Find the value of n=

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