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zubka84 [21]
3 years ago
10

How many 3-stripe flags can be made of materials of 5 different colors if the stripes are to be all different ?

Mathematics
1 answer:
ki77a [65]3 years ago
6 0
Red, blue, black, green, yellow

1.red blue black
2. red blue green
3. red blue yellow
4. red black green
5. red black yellow
6. red yellow green
7. blue black green
8. blue black yellow
9. blue green yellow
10. yellow green black

there are 10 combinations
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To force this vector to have the same length as another vector \vec b, first normalize t\vec a by dividing it by its norm,

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then multiply this vector by the norm of \vec b, so that

\vec c=\dfrac{\|\vec b\|}{\|\vec a\|}\vec a

To confirm that \vec c has the same length as \vec b:

\|\vec c\|=\left\|\dfrac{\|\vec b\|}{\|\vec a\|}\vec a\right\|=\dfrac{\|\vec b\|}{\|\vec a\|}\|\vec a\|=\|\vec b\|

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