# Question: Regard an n x n matrix as a point

Regard an n x n matrix as a point in the -fold product Rn x . x Rn by considering each row as a member of Rn..

a. Prove that det : Rn x . x Rn → Rn is differentiable and

b. If aij : R →R are differentiable and f(t) = det (aij(t)), , show that

a. Prove that det : Rn x . x Rn → Rn is differentiable and

b. If aij : R →R are differentiable and f(t) = det (aij(t)), , show that

## Answer to relevant Questions

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