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October 10, 2025, 07:08:52 pm
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Author Topic: TyErd's questions  (Read 43153 times)  Share 

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TyErd

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Re: TyErd's questions
« Reply #480 on: September 17, 2010, 06:20:54 pm »
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yes it is
how'd you get it?
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Blakhitman

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Re: TyErd's questions
« Reply #481 on: September 17, 2010, 06:31:25 pm »
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haha I sketched and used integral tool, but it can't be the only way.
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Blakhitman

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Re: TyErd's questions
« Reply #482 on: September 17, 2010, 06:33:52 pm »
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trial and error works too.

define the function and keep subbing the different choices.
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TyErd

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Re: TyErd's questions
« Reply #483 on: September 17, 2010, 06:36:40 pm »
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ohh lol why didn't i think of that.

i'd probably end up doing trial and error in the exam if it came up but still i don't know why the solve function doesn't get the answer.
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"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

fady_22

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Re: TyErd's questions
« Reply #484 on: September 17, 2010, 06:54:23 pm »
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Quote from: TyErd on September 17, 2010, 05:40:10 pm
okay what i typed into the calculator is: and that gives me a general solution

The | sign should be put in AFTER the brackets:
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TyErd

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Re: TyErd's questions
« Reply #485 on: September 17, 2010, 06:57:28 pm »
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ohhhhhhh and yess it works thankyou vm
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"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

akira88

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Re: TyErd's questions
« Reply #486 on: September 17, 2010, 08:12:59 pm »
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Quote
solve( ∫ (pi*sin(2*pi*x),x,a,1/2)=0.2,a)|0≤a≤1/2
Lol guess you didn't look at what I typed in carefully enough :P
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TyErd

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Re: TyErd's questions
« Reply #487 on: September 17, 2010, 10:26:06 pm »
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lol my bad
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"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

99.95

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Re: TyErd's questions
« Reply #488 on: September 18, 2010, 03:38:29 pm »
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how do i find integral:

if ∫(0,2) f(x)dx=-5 and ∫(5,2) 4f(x)=12

find ∫(5,0) f(x)dx
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TrueTears

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Re: TyErd's questions
« Reply #489 on: September 18, 2010, 03:39:19 pm »
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99.95

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Re: TyErd's questions
« Reply #490 on: September 18, 2010, 03:43:55 pm »
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Quote from: TrueTears on September 18, 2010, 03:39:19 pm


i know that formula but how do i use it in this particular q
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Blakhitman

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Re: TyErd's questions
« Reply #491 on: September 18, 2010, 04:24:15 pm »
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therefore,



and

so



therefore

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99.95

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Re: TyErd's questions
« Reply #492 on: September 18, 2010, 05:19:06 pm »
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Quote from: Blakhitman on September 18, 2010, 04:24:15 pm


therefore,



and

so



therefore



the answer is 8 but i get what you mean
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Blakhitman

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Re: TyErd's questions
« Reply #493 on: September 18, 2010, 06:35:43 pm »
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lol yea I made a mistake with the first integral i typed, lower limit should be 5 so

and then same procedure and you get 8.
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Re: TyErd's questions
« Reply #494 on: September 18, 2010, 11:29:12 pm »
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how do i do this question:

find the exact area bounded by the line and the parabola:

y=sinx; y=1/2; 0≤X≤2∏
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