# Determine the vector product of v1 = 2i + 3j - k and v2 = i + 2j - 3k are perpendicular to each other,

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Determine the vector product of v1 = 2i + 3j - k and v2 = i + 2j - 3k are perpendicular to each other, determine the value of a.

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Using determinant to find vector product,

Required vector product is $-7\hat{i} + 5\hat{j} + \hat{k}$