5b. Let f(t) be the determinant of an n x n square matrix A (t) of differentiable functions a¡j (t), ¹ ≤ i, j ≤ n. Show that the derivative of f is a sum of n determinants. Justify the following steps (2 pts) Show that if f1, f2, ..., fn are differentiable functions on (a, b), then n d (f₁ · ƒ2 · ... · · fn) (t) = Σ ƒ1 (t) · ƒ2 (t) · ... · fj‒1 (t) · ƒ'; (t) · ƒj+1 (t) · ... · fn dt j=1
5b. Let f(t) be the determinant of an n x n square matrix A (t) of differentiable functions a¡j (t), ¹ ≤ i, j ≤ n. Show that the derivative of f is a sum of n determinants. Justify the following steps (2 pts) Show that if f1, f2, ..., fn are differentiable functions on (a, b), then n d (f₁ · ƒ2 · ... · · fn) (t) = Σ ƒ1 (t) · ƒ2 (t) · ... · fj‒1 (t) · ƒ'; (t) · ƒj+1 (t) · ... · fn dt j=1
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 44E
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