WEBVTT
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The question here gives us two. Major sees A
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and B it wants us to answer, um,
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a Siri's of sub questions related to, um,
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using some of the properties with major cities. So
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the first subsection, um, ask us to do
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a plus B through we know that through on the
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property off matrix addition. Nonetheless, we know if
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it has the same number of a raise, that
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is, if the dimensions are saying we could just
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simply add each corresponding Rohan column to each other.
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So from this property, then we can say that
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a plus B is the same thing as, of
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course, one plus negative three two plus negative,
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too. Two plus four and one plus two.
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So from here, we know that each individual value
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would give us negative too. 06 and three.
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And they'll be the answer to this, um,
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first sub question here, Um, for the 2nd
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1 were given, um, you want to find
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nonetheless a minus b, so we can do the
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same thing here If we find the first row first
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. Call him one minus negative. Three to minus
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negative too. To minus four and one minus two
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. We would be given. Ah, 44 negative
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too. And they have one. And that'll be
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that subsection there. Um, for the 3rd 1
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we want to find 38 We know that through the
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scaler property of matrices if we basically wanna find the
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scaler of such major extreme multiply each corresponding entry with
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the Valley of Three in this particular case. So
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if we do 12 to 1 like such, we
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would be given the scaler of this particular matrix would
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therefore be 3663 and I'll be the equivalent value.
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So part D asks us to find 38 minus to
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be so from using this valley that we've gone from
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part See, we can just plug that in and
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we want to find the value minus two times the
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value of B 34 Native tune too. So from
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here, we can state that the matrix would be
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that subtracted by of course, um, negative six
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negative four eat and four. So from here we
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can used the subtraction, the subtraction property of matrix
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is and we just simply subtracted so that final matrix
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value would be three plus six. So that is
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96 plus four is 10 6 minus eight is native
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to and three minus four is negative one. So
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that would be the final matrix here.