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Posted: **Wed Jul 13, 2022 5:08 am**

: Question 1 A Show That Det A 21 Tr A Tr A2 1tr A For Every 2 2 Matrix A B Prove That X1 Y1 X2 Y2 1 (117.58 KiB) Viewed 15 times

Question 1: (a) Show that det(A)=21∣∣tr(A)tr(A2)1tr(A)∣∣ for every 2×2 matrix A. (b) Prove that (x1,y1),(x2,y2) and (x3,y3) are collinear points if and only if ∣∣x1x2x3y1y2y3111∣∣=0

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Question 1: (a) Show that det(A)=21​∣∣​tr(A)tr(A2)​1tr(A)​∣∣​ for every 2×2 matrix A. (b) Prove that (x1​,y1​),(x2​,y2​)

Question 1: (a) Show that det(A)=21​∣∣​tr(A)tr(A2)​1tr(A)​∣∣​ for every 2×2 matrix A. (b) Prove that (x1​,y1​),(x2​,y2​)

Question 1: (a) Show that det(A)=21∣∣tr(A)tr(A2)1tr(A)∣∣ for every 2×2 matrix A. (b) Prove that (x1,y1),(x2,y2)

Question 1: (a) Show that det(A)=21∣∣tr(A)tr(A2)1tr(A)∣∣ for every 2×2 matrix A. (b) Prove that (x1,y1),(x2,y2)