The matrix A is given below. Find values for variables a, b, c, and d that make det(A) = 0.
5 – 8 6 2a-b
-4 9 1 2b-d
-7 -5 -9 3a-c
-6 0 3 d+4

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When building customer relationships through email what should you not do? question 2 options: utilize proper grammar, spelling, and punctuation type in all capital letters use hyperlinks rather than attachments respond to all emails within 24 hours

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