At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

that is for n distinct objects , here we have reptition

non distinct objects

I don't see a simple formula online either :)
We can do it out , list all the possibilities

Do you understand why they get the 2 in 5 choose 2?

Because there are 2 arrangements that are different up to rotation.

do you understand how they got this
aabbb = abbba = bbbaa = bbaab
ababb = abbab

It's in a circle, so you can rotate the terms a bit to make it equivalent.
Correct?

right

How do we find the duplicates without enumeration?

Oh gosh, this is too much.
I'll just have to enumerate.

they did all the enumerations there . they got 5

Doesn't 212122 ~ 122212?

|dw:1434298495220:dw|