5

Perform the indicated operations.-6 1+6 -11 [14 [-8 17]1. 8~1 4-2 -3 ~5] + ~1-4 sl: -1{3-+3-T4-15.[281-4-; -31 -6_1-16 22] 2[27 ~9] 3[54 -18]~4 -8 10] 8. 2/ 100 200...

Question

Perform the indicated operations.-6 1+6 -11 [14 [-8 17]1. 8~1 4-2 -3 ~5] + ~1-4 sl: -1{3-+3-T4-15.[281-4-; -31 -6_1-16 22] 2[27 ~9] 3[54 -18]~4 -8 10] 8. 2/ 100 200 20 30 50 80] [40 60_7.Is 24]- He 18]

Perform the indicated operations. -6 1+6 -11 [14 [-8 17] 1. 8~1 4-2 -3 ~5] + ~1 -4 sl: -1 {3-+3-T4 -1 5. [2 81-4-; -31 -6_ 1-16 22] 2[27 ~9] 3[54 -18] ~4 -8 10] 8. 2/ 100 200 20 30 50 80] [40 60_ 7. Is 24]- He 18]



Answers

Perform the indicated operations, where possible.
$$\left[\begin{array}{cccc}{2} & {8} & {12} & {0} \\ {7} & {4} & {-1} & {5} \\ {1} & {2} & {0} & {10}\end{array}\right]-\left[\begin{array}{rrrr}{1} & {3} & {6} & {9} \\ {2} & {-3} & {-3} & {4} \\ {8} & {0} & {-2} & {17}\end{array}\right]$$

All right with major condition, although it was ad component wise. So we're into three plus negative five and we get the new Matrix. Three plus negative. Five is negative, too. Negative for float zeros. Negative. Four two plus seven is 98 plus seven is 15 zero plus three is 31 plus negative. Six news, Negative five. And that's gonna be our new matrix.

Okay, We have a three fractions we have to add. So what? I left because first at older, full numbers, two plus three plus 16 by right that year. And then what I'm gonna do is get a common denominator. Since the denominators are not the same. I know 24 is common, you know? So the way I'd raise 24 I know that the 1st 1 is gonna get six on top. Plus, this is gonna be three times five. 15. And this is for So this becomes 25 over 24 which really is 1/1 24 and basically you about that year. And what you get is seven 1/24. So that's an answer. Okay, It's

Okay, giving these two major cities we like to perform. Addition between them. However. The First Matrix, where he's got to rose and three columns. It's a two by three matrix on this matrix has got three rows and two columns. It's a three by two on when we're doing addition between major cities, we actually do need our dimensions to be exactly the same. To this operation can be performed, there is no resulting matrix.

In order to subtract matrices, they must be the same size majors. On the left is a two row by three column matrix. One on the right is a two row by three column matrix. Since the same size we can subtract them, you subtract corresponding elements. So for example, row one column 12.4 minus seven, 2.4 -7 is negative 4.6, -2.8 -2.2 would be negative 2.8 plus 2.2 or negative 0.6. Um 3.9 -2.2 Is the same thing as 3.9 plus 2.2 or 6.1 2nd row negative 1.6 -2 3.2 is negative 1.6 plus 3.2, Which is 1.6 0 -2.20 plus 3.2 or 3.2 In 4.2 -1 is 3.2. Mhm


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