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trig problem

Discussion in 'Chit Chat' started by Jakeman, May 7, 2003.

  1. MisterHalleck

    MisterHalleck Peasant

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    Took the AP CalcBC test today... it was an utter pushover.
    Now I'm worried that I forgot to bubble something in on the personal information sheet.
     
  2. kraahl

    kraahl Peasant

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    the physics final I talked about earlier...
    I feel like it went to hell, I know at least 3 questions that I phucked up (out of 16), they where eseveral point problems so I´ll probably get a few points.
    if you add up the other errors I´m sure I have the result does not look good.

    I need to study more during the actual course, not just cram everything into my head the days before. The thing is it has worked out good before, perhaps this will teach me a lesson.
     
  3. aleldtritch

    aleldtritch Peasant

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    Calc AB had simple multiple choice questions, but I forgot how to do a few parts of the written response qustions. There was a tricky one (in my opinion) with Riemann Sums.

    Also, when is xe^x concave down?
     
  4. mud

    mud Peasant

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    Thanks cow.
     
  5. Jakeman

    Jakeman MSC Founder and Donator

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    I just got a notice from my college saying my Math grade from last semester was changed from a 'B' to an 'A'. I guess I was right after all. This means:

    0 * undefined != 0

    Therefore there are no solutions to the equation.
     
  6. kraahl

    kraahl Peasant

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    My exam went very fell, I really only missed those 3 questions. Got the highest grade. One of my friends beat me though. Doesn´t matter, I owned him in our last math final.
     
  7. kraahl

    kraahl Peasant

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    Does "!=" means "not equal"? If it does then I don´t understand.
     
  8. Jakeman

    Jakeman MSC Founder and Donator

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    Yes.

    The two possible solutions result in that equation. Both sides of an equation must be equal. Therefore, there are no solutions.
     
  9. cowofwar

    cowofwar Peasant

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    You can't multiply a real number by an undefined thing and get a real number.
     
  10. kraahl

    kraahl Peasant

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    I think I got a bit confused here.

    I guess I didn´t read the last line, so I only saw

    "I guess I was right after all. This means:
    0 * undefined != 0"

    And that is not true, as you said, there are no solutions. Anything multiplied på 0 can never become anything other then 0, I understand that.
     

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