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Mkey [24]
3 years ago
14

Please help me out with this :) and explain if you can

Mathematics
1 answer:
KonstantinChe [14]3 years ago
6 0

Answer:

there are twelve total combinations

Step-by-step explanation:

just by looking at the problem though,

ABCD

AB

AC

AD

BA

BC

BD

CA

CB

CD

DA

DB

DC

normally, because some of them are repeated, we need to get rid of some

AB

AC

AD

BC

BD

DC

since this is about passwords though, we need to keep all of the same twelve combinations because the order of the letters are important

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Firdavs [7]

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3 years ago
Read 2 more answers
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irina [24]

Answer:

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