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October 24, 2025, 05:55:55 am
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Author Topic: PLease help  (Read 5731 times)  Share 

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khalil

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PLease help
« on: July 19, 2009, 01:59:08 pm »
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Question 12)c on page pg.481 in the essentials textbook!

The function f(x)= In(2x)

a) Find f^-1 and sketch the graphs of f and f^-1 on the one set of axes
b) Find the exact value of the area where b= In(4) and a=0
c) Find the exact value of where b=2 and a=3/2

Im having trouble with c)
« Last Edit: July 19, 2009, 11:18:59 pm by khalil »
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Flaming_Arrow

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Re: PLease help
« Reply #1 on: July 19, 2009, 02:04:21 pm »
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it would be wise to post the question here so ppl who dont have access to the book can help you
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khalil

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Re: PLease help
« Reply #2 on: July 19, 2009, 05:34:38 pm »
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Im sure TT does :)
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dcc

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Re: PLease help
« Reply #3 on: July 19, 2009, 05:38:15 pm »
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The rest of us don't, however.
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cobby

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Re: PLease help
« Reply #4 on: July 19, 2009, 05:39:45 pm »
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Quote from: khalil on July 19, 2009, 01:59:08 pm
Question 12)c on page pg.481 in the essentials textbook!
why can't you just post the question?

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kat148

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Re: PLease help
« Reply #5 on: July 19, 2009, 06:53:39 pm »
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there isn't a Question 12 on pg. 481...
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Flaming_Arrow

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Re: PLease help
« Reply #6 on: July 19, 2009, 06:54:43 pm »
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Quote from: kat148 on July 19, 2009, 06:53:39 pm
there isn't a Question 12 on pg. 481...

i think he's referring to the normal methods textbook(non-CAS)
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GerrySly

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Re: PLease help
« Reply #7 on: July 19, 2009, 06:58:52 pm »
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Haha, well this thread is just great
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dcc

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Re: PLease help
« Reply #8 on: July 19, 2009, 07:01:02 pm »
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About as great as enwiabe's ability to listen to other people's suggestions.
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kat148

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Re: PLease help
« Reply #9 on: July 19, 2009, 07:03:55 pm »
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Quote from: Flaming_Arrow on July 19, 2009, 06:54:43 pm
Quote from: kat148 on July 19, 2009, 06:53:39 pm
there isn't a Question 12 on pg. 481...

i think he's referring to the normal methods textbook(non-CAS)
Hmm its not there in non-CAS either (assuming he's using the 4th Edition), but then it could be a typo *shrugs
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shinny

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Re: PLease help
« Reply #10 on: July 19, 2009, 07:07:02 pm »
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And this is why you type out the question OP! I've said before, if you want people to put the effort in to answer your question, put some effort into putting your question forward. In the end, it'll save you time anyway.
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kat148

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Re: PLease help
« Reply #11 on: July 19, 2009, 07:25:44 pm »
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Was this your question Khali?

(from Chapter 14A of MM CAS textbook)

Q12) Cycling to school each morning, a girl goes through three sets of traffic lights. The probability of stopping at the first set is 0.6. If she stops at any one set, the probability that she has to stop at the next is 0.9. If she doesn’t have to stop at any one set, the probability that she doesn’t have to stop at the next is 0.7.

Use a tree diagram to find the probability that:

a) she has to stop at all three lights
b) she stops only at the second set of lights
c) she stops at exactly one set of lights


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khalil

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Re: PLease help
« Reply #12 on: July 19, 2009, 10:39:33 pm »
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I would be MORE than happy to type the question but i dont know how to display the integral sign.
This question is from the Ti-nspire CAS edition. In Exercise 12 J Q 12 c). It is the question about the anti derivative of log.
Thanks
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Flaming_Arrow

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Re: PLease help
« Reply #13 on: July 19, 2009, 10:41:32 pm »
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Quote from: khalil on July 19, 2009, 10:39:33 pm
I would be MORE than happy to type the question but i dont know how to display the integral sign.
This question is from the Ti-nspire CAS edition. In Exercise 12 J Q 12 c). It is the question about the anti derivative of log.
Thanks



Code: [Select]
[tex] \int_a^b f(x) dx[/tex]
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khalil

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Re: PLease help
« Reply #14 on: July 19, 2009, 11:10:54 pm »
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The function f(x)= In(2x)

a) Find f^-1 and sketch the graphs of f and f^-1 on the one set of axes
b) Find the exact value of the area where b= In(4) and a=0
c) Find the exact value of where b=2 and a=3/2

Im having trouble with c)
« Last Edit: July 19, 2009, 11:18:12 pm by khalil »
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