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Applied Math 40S February 6, 2008

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Multiplication by a scalar and BEDMAS.
9
What does this picture have to do with matrices? Matrix
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Page 1: Applied Math 40S February 6, 2008

What does this picture have to do with matrices?

Matrix

Page 2: Applied Math 40S February 6, 2008

A little warm up ...

Page 3: Applied Math 40S February 6, 2008
Page 4: Applied Math 40S February 6, 2008

Matrices and multiplication... this is called "scalar multiplication" or "multiplication by a scalar".

Page 5: Applied Math 40S February 6, 2008

Now you try ...

Page 6: Applied Math 40S February 6, 2008

Now put it all together ...

Page 7: Applied Math 40S February 6, 2008

Now put it all together ...

Page 8: Applied Math 40S February 6, 2008

Now put it all together ...

Page 9: Applied Math 40S February 6, 2008

HOMEWORKSolve for x:

Solve:

Solve for x:

Solve for x:

Solve:

Solve:


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