Yefim S. answered 04/03/22
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Math Tutor with Experience
det(A - λI) = (7 - λ)(- 1 - λ) + 7k = λ2 - 6λ + 7(k- 1) = 0;
Disciminant D = 9 - 7(k - 1) = 0; k = 9/7 + 1 = 16/7
Curtis D.
asked 04/03/22
Yefim S. answered 04/03/22
Math Tutor with Experience
det(A - λI) = (7 - λ)(- 1 - λ) + 7k = λ2 - 6λ + 7(k- 1) = 0;
Disciminant D = 9 - 7(k - 1) = 0; k = 9/7 + 1 = 16/7
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