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Algebra II Videos 54 videos

Tangent Half-Angle Formula
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ACT Math 5.2 Intermediate Algebra 301 Views


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Description:

ACT Math: Intermediate Algebra: Drill 5, Problem 2. Find the product.

Language:
English Language

Transcript

00:02

And another shmoop de jour for you and your ... brian.

00:05

Multiply Matrix 1 -1 by -1 1.

00:12

And here are the potential answers...

00:16

Okay, It's just about matrix distribution. They just want to see if we know how to deal

00:20

with these funky things in brackets.

00:22

Take "1 times the minus 1 here" and the answer goes... here; then we have 1 times

00:30

1, which is... 1.

00:32

Now we have "minus 1 times minus 1," and we get 1, which goes here... and then "minus

00:38

1 times 1" giving us minus 1.

00:40

So the answer is D.

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