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October 22, 2025, 09:24:18 am
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Author Topic: Circular Functions 'strictly decreasing' question?  (Read 1369 times)  Share 

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This-is-not-me

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Circular Functions 'strictly decreasing' question?
« on: May 30, 2013, 06:11:16 pm »
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Can someone please explain part c.) of this question to me?
I've never seen one like it and I'm totally confused -.-
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BubbleWrapMan

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Re: Circular Functions 'strictly decreasing' question?
« Reply #1 on: May 30, 2013, 06:24:21 pm »
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You got the right answer. The period is 60, though.
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Tim Koussas -- Co-author of ExamPro Mathematical Methods and Specialist Mathematics Study Guides, editor for the Further Mathematics Study Guide.

Current PhD student at La Trobe University.

This-is-not-me

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Re: Circular Functions 'strictly decreasing' question?
« Reply #2 on: May 30, 2013, 06:40:07 pm »
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Yeah I wrote the period down wrong.  But my teacher didn't give me the mark for part c.), any idea why?
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BubbleWrapMan

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Re: Circular Functions 'strictly decreasing' question?
« Reply #3 on: May 30, 2013, 06:41:49 pm »
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Not the slightest.
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Tim Koussas -- Co-author of ExamPro Mathematical Methods and Specialist Mathematics Study Guides, editor for the Further Mathematics Study Guide.

Current PhD student at La Trobe University.

Daenerys Targaryen

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Re: Circular Functions 'strictly decreasing' question?
« Reply #4 on: May 30, 2013, 06:51:39 pm »
+1
maybe you needed
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This-is-not-me

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Re: Circular Functions 'strictly decreasing' question?
« Reply #5 on: May 30, 2013, 06:59:14 pm »
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wow if that's the reason than I absolutely hate my teacher, this was a sac and I reckon he should of been more lenient :(
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BubbleWrapMan

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Re: Circular Functions 'strictly decreasing' question?
« Reply #6 on: May 31, 2013, 05:02:09 pm »
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The definition of a function being strictly increasing on an interval is that for all , . So it can include stationary points.
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Tim Koussas -- Co-author of ExamPro Mathematical Methods and Specialist Mathematics Study Guides, editor for the Further Mathematics Study Guide.

Current PhD student at La Trobe University.

FlorianK

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Re: Circular Functions 'strictly decreasing' question?
« Reply #7 on: June 02, 2013, 05:34:45 am »
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Quote from: HatersGonnaHate on May 30, 2013, 06:51:39 pm
maybe you needed
this is really the only possible reason. I would talk to the teacher again
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This-is-not-me

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Re: Circular Functions 'strictly decreasing' question?
« Reply #8 on: June 02, 2013, 04:50:09 pm »
+4
haha thanks and I did, turns out that he did in fact mark it incorrectly and I did get my mark.
Thanks everyone.
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BubbleWrapMan

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Re: Circular Functions 'strictly decreasing' question?
« Reply #9 on: June 02, 2013, 04:59:18 pm »
+3
Quote from: This-is-not-me on June 02, 2013, 04:50:09 pm
haha thanks and I did, turns out that he did in fact mark it incorrectly and I did get my mark.
Thanks everyone.
Justice!
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Tim Koussas -- Co-author of ExamPro Mathematical Methods and Specialist Mathematics Study Guides, editor for the Further Mathematics Study Guide.

Current PhD student at La Trobe University.

FlorianK

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Re: Circular Functions 'strictly decreasing' question?
« Reply #10 on: June 02, 2013, 07:01:04 pm »
+1
Quote from: This-is-not-me on June 02, 2013, 04:50:09 pm
haha thanks and I did, turns out that he did in fact mark it incorrectly and I did get my mark.
Thanks everyone.

Great :). Next time I would still include the though :D
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This-is-not-me

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Re: Circular Functions 'strictly decreasing' question?
« Reply #11 on: June 05, 2013, 10:21:53 pm »
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Yeah I will :) thanks
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