Recent content by pace

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    What's your favorite movie?

    The Talented Mr Ripley, Get Shorty, The Mission, 12 Angry Men, Howard's End.
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    Memorization for History Exam

    Or you can use a strategy that has been put forward in a book here recently in Norway. A guy who's world top at memorizing cards use two techniques: travelroute and images. You use familiar places, like your home, and walk through each room. You'll recognize these rooms very well because it's...
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    General Integral rules

    yes, i am. Yeah, I figured. Like this right?: \int 5 x e^{x^2}dx = 5/2§2xe^(x^2) = 5/2§ (and as in opposite of the above e^(x^2)*2x) = (e^(x^2)) , which gives simply 5/2(e^(x^2))+C.
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    General Integral rules

    so.. : testing.. \int 5x e^{x^2}dx = 5/2 \int 2x e^{x^2}dx = 5/2\times2\times \frac{1}{1+1}x^1+1
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    General Integral rules

    no, it's rule 2? e^(x^2)= 1/x^2*e^(x^2), it would make the x^2 dissapear anyway.. and would make sense at the least.
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    General Integral rules

    (e^u)`*u` I'm making a fault here? no chain rule in integral? e^(x^2)=e^(x^2)? , but why isn't chain rule being used? (like in §e^(3x-2)dx=(1/3)e^(3x-2)+C.) it looks like it should, heh. And how do the x^2 dissapear..
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    General Integral rules

    Where do I find LaTeX? Yeah, I meant chain rule. in is natural logarithm, e^inp=p. My try went: §5x*e^(x^2)dx= 5/2§2x*e^(x^2)dx (cause here is where you 'use it', right? = 5/2*2*(1/(1+1))x^(1+1)*(e^u)`*u` (chain rule) = 5/2*x^2*e^(x^2)*(1/(2+1))x^(2+1) = 5/2x^2*e^(x^2)*(1/3)x^3+C.
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    General Integral rules

    oh no, sorry the answer is: (5/2)*e^(x^2)+C... (at work, brb)
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    General Integral rules

    Homework Statement Solve (e^(x^2))` , use this result to solve §5x*e^(x^2)dx Homework Equations * is multiply ` is derive 1.§e^xdx=e^x+C 2.§e^kxdx=1/k*e^kx+C 3.§a^xdx=1/ina*a^x+C (a is a number) 4.§k*f(x)dx=k*§f(x)dx The Attempt at a Solution (I'm alittle confused as to...
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    Probability with independent outcomes

    uh, are you joking with me, or am I writing down the question wrong(cause I know I have a bad habit of not reading the question at probability well enough)? Cause that was the way I was thinking as you above.
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    Probability with independent outcomes

    Yeah, b| the probability of that the eldest is a brother, and the two youngest girls. That is also just one outcomes yes? So that should give 1/8. But the answer writes as 0.121, which is not 1/8. ???
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    Probability with independent outcomes

    Yeah, I guessed so too, but then I've thought so before too and being wrong, so.. *g* Hm, I'll ask about b| soon.
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    Probability with independent outcomes

    Jeeserssweesers(for a lack of a better word), probability is confusing. Homework Statement A family has three children, no twins or.. that same just with three. a| What is the chance that all the children are girls. Homework Equations The chapter here shows the equtations...
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    What's the point of life

    Another guy that wants to shout out his oppinion without reading all that's before him. For me it is different in that I find much meaning, but I also feel small. I'm supporised when someone says they can't find meaning in anything for to me there is so much. Maybe if you can't find a meaning...
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