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OpenStudy (anonymous):
Given D = [5,0,-1_3,2,4_8,-6,7] and E is additive inverse of D, what is E?
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jimthompson5910 (jim_thompson5910):
Hint: If E is additive inverse of D, then D+E = 0 D+E-D = 0-D E = -D E = -1*D
OpenStudy (anonymous):
I needed to find the det first right to figure out if it would have a inverse?
jimthompson5910 (jim_thompson5910):
no you just need to multiply everything in matrix D by -1
jimthompson5910 (jim_thompson5910):
no determinants or inverses needed
OpenStudy (anonymous):
Ok hold on I will get back to u with the answer
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jimthompson5910 (jim_thompson5910):
ok
OpenStudy (anonymous):
[-5,0,1_-3,-2,-4_-8,-6,-7] ?
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