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mihalych1998 [28]
4 years ago
10

(help)Calculate the value for each determinant:

Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0

9514 1404 393

Answer:

  • 9, -12
  • -48, 0
  • 17, 1

Step-by-step explanation:

Your calculator can do this, but it's probably faster to do it in your head.

  \left|\begin{array}{cc}a&b\\c&d\end{array}\right|=ad-cb

__

  \left|\begin{array}{cc}3&-1\\-3&4\end{array}\right|=(3)(4)-(-3)(-1)=9\\\\ \\\left|\begin{array}{cc}8&-1\\-4&-1\end{array}\right|=(8)(-1)-(-4)(-1)=-12

And the next two rows are ...

  (-12)(5) -(12)(-1) = -48   —   (2)(-1) -(2)(-1) = 0

  (0)(4) -(17)(-1) = 17   —   (1)(1) -(0)(0) = 1

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Answer:

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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BlackZzzverrR [31]
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