а ) 0 0b0 0 11. Using cofactor method, prove that det M = 0 0 = abcd 0. 0 0 0 d a? a3 12. Using cofactor method, prove that det N = 64 = ab?c'd* c3 0 0 0 a

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 71E
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a 0 0 0
0b 0 0
0 0
0 0 0 d
11. Using cofactor method, prove that det M =
= abcd
C
a a2 a at
0 b2 b3 b4
c3 c4
= ab²c³dª
12. Using cofactor method, prove that det N =
0.
0.
0 d
0 0
b b2 0
0.
13. Using cofactor method, prove that det N =
= ab?c°d4
c c c³ 0
d d d d
Transcribed Image Text:a 0 0 0 0b 0 0 0 0 0 0 0 d 11. Using cofactor method, prove that det M = = abcd C a a2 a at 0 b2 b3 b4 c3 c4 = ab²c³dª 12. Using cofactor method, prove that det N = 0. 0. 0 d 0 0 b b2 0 0. 13. Using cofactor method, prove that det N = = ab?c°d4 c c c³ 0 d d d d
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