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no more answers
just one more!
Use the product rule.
and it would come up to?
you tell me?
she just wants answers
You have 8 question, and you can answer each question 2 ways, how many total ways can you answer?
its 8 questions and u can answer it 2 different ways which it doubles
If it were just 2 questions with 2 ways to answer, how may ways would there be to fill the test?
Actually that's a bad example. If there were 3 questions with 2 ways to answer each how many ways
I'm not asking you cantor ;p
in the same way but just with 3
Lets say it's a true false test with 3 questions. I can answer True, True, True False, True, True True, False, True False, False, True True, True, False False, True, False True, False, False False, False, False Right?
Yeah I know that
So how many is that?
Really? Cuase I only count 8 different ways I can do the test.
Err Cause rather.
theres 8 ways but all toghether theres 25 if u count the true false's
No. There are 8 different possible ways to complete the test.
So for your original question if you have 8 questions, how many possible ways can you complete the test?
should i ask ?
if u count them all toghether u get 25 thats how so stop u guys are suppose to help not be mean
sorry i was talking to polpak
w.e bye someone else will help me
Giving you the answer doesn't help you
well when it's done and outta the way I will not have to look back at it so..
except when it's time to take the test, or when something new is taught that uses this to solve, etc.
Everything builds on everything else
ur helping everyone else and giving them answeers?
pol, she added up all of them, she cant count either , there are 24 in that list
no theres 24
There are 8 lines, with 3 words on each line.
This is one of those things you got someone to tell you and didn't look back about I can see.
i didnt even think of that,
\[8\times 3 \ne 25\]
pol, so your integration seems redundant
its 2 not 3
You talking about your u-sub question? please ask over there.
well, 8*2 is certainly not 25.
you mean 8 *3
she cant count and doesnt reason well.
I do mean 8*3, but she claimed it was 2, not 3.
the problem states 3 not 2
wait, i guess theres some subtley here. let me see
2 not 3
Erg. Ok look chika. I enumerated the possible outcomes for a test with 3 questions where each question had 2 answers.
ok each of those lines is ONE possibility for the test to be solved
Each line in my post was a way you could complete the whole test. Not one question.
so you wrote out the entire sample space
Try something more simple. If you have two true or false questions how many ways can you answer them?
I didn't want to try to write out the sample space for 8 questions because a) that would have given her the answer, and b) I didn't want to write 256 lines.
the other way is to use multiplication rule for the first question there are 2 ways, second question there are 2 ways to answer, etc, so the total ways is 2 x 2 x 2 ...
kind of like a tree diagram
so you can enumerate the entire space, as you did pol for your simpler example. or you can use product rule rather than enumerate 256 cases
I got it
chika, how did you get 25 !!!
i got the answer
pol, it is redundant because you already have cos z dz in the numerator
du = cos z dz, and you already have cos z dz in the numerator