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Today,
03:34 PM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
See and that's where i think i got confused.....my line of reasoning and the mistake was something like.... \displaystyle\lim_{x \to...
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9 replies | 185 view(s)
Today,
02:50 PM
Dr.Peterson
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Another way to think of this one is to divide numerator and denominator by x: \displaystyle\lim_{x \to \infty}\frac{\sqrt{2-8x^3}}{4+7x} = \lim_{x...
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9 replies | 185 view(s)
Today,
02:38 PM
Dr.Peterson
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Let's first rewrite the equations using a more typical form for circles; note that A and F are the squares of the radii of the circles, which I'll...
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8 replies | 158 view(s)
Today,
01:48 PM
Denis
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Hmmm...looks like the circles disappear with a MandrakePouff after the subtraction step :p
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8 replies | 158 view(s)
Today,
01:46 PM
Bob Brown MSEE
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
An expression for x or y is pages long. However a specific numerical solution is easily obtained by graphing the two circles and reading the...
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8 replies | 158 view(s)
Today,
01:31 PM
j-astron
replied to a thread
Need help with IA Correlation.
in
Probability / Statistics
Yeah a cool thing I just thought of is that you can consider the entire set of students you surveyed to be the population. That gives you a...
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2 replies | 71 view(s)
Today,
01:18 PM
j-astron
replied to a thread
Need help with IA Correlation.
in
Probability / Statistics
Hi paiges, welcome to the forum! The correlation coefficient "just for freshman" makes no sense, because you've kept grade level fixed and are...
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2 replies | 71 view(s)
Today,
12:47 PM
sinx
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
what are you trying to find? "I want to calculate x and y values" do you mean you want to calculate common x and y values, i.e. the intersection of...
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8 replies | 158 view(s)
Today,
12:43 PM
j-astron
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
I tried it out with actual numbers for circles that I know intersect at two points. I didn't want to work the algebra all the way through, but I ...
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8 replies | 158 view(s)
Today,
12:10 PM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
because ultimately i know what i need to do i just dont know how to do it. I think thats the problem. I dont know how to factor out the x from the...
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9 replies | 185 view(s)
Today,
11:31 AM
Jomo
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Quick way or not, even you noted that what you factored out did not reduce to 1. Why not? You did not factor out the same thing. You knew it had to...
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9 replies | 185 view(s)
Today,
11:17 AM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
will do. Thanks. This mental error is another silly mistake...I know i have solved problems like this at least a dozen times. normally i would...
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9 replies | 185 view(s)
Today,
10:54 AM
Jomo
replied to a thread
what is the integral of 2^(2x)? need help tonight, exam is tomorrow
in
Calculus
You can check it yourself. Just take the derivative of (1/2)e2x+2x+C and see if you get back the intergrand (the function you were supposed to...
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10 replies | 281 view(s)
Today,
10:44 AM
Jomo
replied to a thread
Limit of this series?
in
Calculus
So the series has the sign oscillating. Forget about that for a moment. What is happening to n/(n2+1) as n goes to infinity. If it goes to real...
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3 replies | 78 view(s)
Today,
10:35 AM
Jomo
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Well you did not live up to what you said you'll do. You did not factor out the same from the numerator and denominator! In the numerator you...
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9 replies | 185 view(s)
Today,
10:26 AM
Jomo
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Denis, wait a minute. I am not exactly saying you're wrong (although I'd love to) but I do have a problem (actually many). You have the equation of...
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8 replies | 158 view(s)
Today,
09:14 AM
Denis
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Changing your equations to (same thing!): (a-x)^2 + (b-y)^2 = u (c-x)^2 + (d-y)^2 = v Expand: a^2 - 2ax + x^2 + b^2 - 2by + y^2 = u c^2 - 2cx +...
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8 replies | 158 view(s)
Today,
08:26 AM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
\frac{\sqrt{2-8x^3}}{4+7x} For this problem, were basically suposed to factor out the largest power of x that is in the denominator from both...
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9 replies | 185 view(s)
Today,
05:33 AM
noobishnoob
replied to a thread
Limit of this series?
in
Calculus
So for this sequence (not series) limit n approaches infinity. I tried using standard limits but i'm stuck.
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3 replies | 78 view(s)
Today,
02:47 AM
ksdhart2
replied to a thread
Limit of this series?
in
Calculus
But what are your thoughts? What have you tried? Please re-read the Read Before Posting thread that's stickied at the top of each subforum and comply...
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3 replies | 78 view(s)
Today,
02:30 AM
noobishnoob
started a thread
Limit of this series?
in
Calculus
How do I find the limit of this series
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3 replies | 78 view(s)
Today,
01:08 AM
sinx
replied to a thread
what is the integral of 2^(2x)? need help tonight, exam is tomorrow
in
Calculus
j-astron; my soln is (1/2)e2x+2x+C is this correct? x, lnx]
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10 replies | 281 view(s)
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