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I don't kclass='bold'>now if you've learned FOlL class='bold'>in eightth grade algebra, nclass='bold'>ineth grade algebra.

Please don't run class='bold'>in the classroom.

class='bold'>No, class='bold'>no. Front of the lclass='bold'>ine.

Why don't I add this row to 2 times thclass='bold'>at row.

So this first term thclass='bold'>at's class='bold'>in the first row and its first column, is equal to essentially this first row's vector class='bold'>no, this first row vector times this column vector.

Let me see I don't like this color class='bold'>at all and class='bold'>now we're goclass='bold'>ing to multiply this row, because we're class='bold'>in this bottom row, we're class='bold'>in row 2, column 2, to row 2, column 2.

So, just call Miss Gil Ra Im out. People who don't lclass='bold'>ine up are jerks.

Don't you class='bold'>in the front row worry or anythclass='bold'>ing.

So we don't have to change our first row or our second row.

Any ideas? Front row? class='bold'>Nobody?

But beclass='bold'>ing passive is class='bold'>not the way to actually proceed with this class.

Why don't I just swap the first and second rows?

And I didn't touch on it class='bold'>in thclass='bold'>at video, but there is also such a thclass='bold'>ing as a lower triangular, thclass='bold'>at you might have guessed how it looks.

I wouldn't want you to be lclass='bold'>ate for class.

Oh, class='bold'>no. You gotta stand class='bold'>in lclass='bold'>ine.

Row 2 mclass='bold'>inus row 1.

So the second row mclass='bold'>inus the first row.

So, whclass='bold'>at is thclass='bold'>at? Thclass='bold'>at is class='bold'>in the second row. It's class='bold'>in row two.

Just replace this row with this row plus the first row.

Let's replace this row with this row mclass='bold'>inus 2 times thclass='bold'>at row.

Description class='bold'>in row

Like soldiers class='bold'>in lclass='bold'>ines.

Let me replace the second row with 2 times the first row mclass='bold'>inus the second row.

And then row 2 mclass='bold'>inus row 1.

The third row mclass='bold'>inus 3 times the first row.

And class='bold'>notice, these were class='bold'>in the first row and they're class='bold'>in the first row here.

mclass='bold'>inus 1 class='bold'>in the first row mclass='bold'>inus 1 and 2 class='bold'>in the second row,

Well, this was one row, and this is the second row, this is the third row, and this is the fourth row.

It's the third row mclass='bold'>inus 3 times the first row.

This row is the same as this row.

Let me replace the second row with the second row mclass='bold'>inus 2 times the third row.

If you have any zeroed out rows, it's class='bold'>in the last row.

And let's replace our second row with the second row mclass='bold'>inus the first row.

After of the first stage all pupils enter 5th grade, thus pupils thclass='bold'>at started class='bold'>at the age of 7 do class='bold'>not class='bold'>attend the 4th grade.

He is class='bold'>in the tenth grade.

She went to the back of the lclass='bold'>ine.

I stood class='bold'>at the end of the lclass='bold'>ine.

He is the tallest person class='bold'>in the class.

I'm an class='bold'>eighth class='bold'>grader.

Your grade class='bold'>in the exam...

See you class='bold'>in class.

We have the same classes

He's class='bold'>in fourth grade.

Is your class coed?