Recent content by wuffle

Once again I can't seem to do this simple problem, not sure why. hate mechanics :( Homework Statement Charged particle enters a region containing constant magnetic field and leaves it after 708 micro seconds, what is Fx, the x component of the force after being 236 micro seconds long in the...

thanks for replies! appreciate it

Homework Statement This is a sub problem, the whole problem is find interval of convergence and radius of convergence but the thing I am having trouble with is how to simplify this simplify the series 2*4*6*8*(2n)/2*4*6*8...(2n+2) Homework Equations The Attempt at a Solution...

Still can't get it. I guess writing it as y(x)=xt(x) works but shouldn't we get rid of t in our equation?

I guess... turns out my x=y^2 was wrong, now I am completely lost. actually yeah, i just fond out y(x)=x * t(x), i just plugged in some numbers and it turned out y/x=t, what do i do with that?

Hello forum! I have yet another question concerning calculus and the topic we're doing right now is extremely confusing for me. Homework Statement Eliminate the parameter from the parametric equations x=3t/(1+t3), y=3t2/(1+t3), and hence find an Cartesian equation in x and y for this curve...

well yea obviously, since the hour arrow can't be more than half(3.175) because the minute one has to be in same range, so its somewhere 3.16-3.17 ish, but how exactly does that relate to calculus?rate of change of arrows? obviously the minute arrow changes faster, but how much faster is...

This helped a LOT, here's what I did: Differentiate implicitly two functions, here's what I got dy1/dx= -x/2y dy2/dx=x/y So since slopes must be perpendicular -x/2y * x/y=-1 -x2/2y2=-1 This is where I got stuck for a long time, here's what I did next x2 +2 y2=2 2x2-2y2=1...

Homework Statement I made a thread last week where I had a reasonable idea what was going on in 2 problems last week this week I have 2 problems where i have NO idea where to start. Show that the ellipse x2 +2 y2 =2 and the hyperbola 2 x2 - 2 y2 =1 intersect at right angles. What is the...

Thanks a lot for your help!

Yep, you are right, sinx=0, x=pi n , not 2pi n. sinx=0 x=pi * n for x=pi y=pi+2 equation of tangent line y-(pi+2)=1*(x-pi) Well, it asks to write an equation of the tangent line, so I was thinking it was only 1, guess I was wrong.But can't I write infinitive amount of tangent lines?since...

Homework Statement 2 problems, i solved both of them but I am not 100 % I am right Find all points on the curve y=x-2cosx where the tangent line to the curve is parallel to the line y=x and write an equation of the tangent line at such point Let f^-1 be the inverse of the one -to- one...

Sorry for bumping, I still am not really sure if I did #1 right, both y=2cos(1/x) and y=2+sinx/x do seem to have y=2 as horizontal asymptotes, but I am not really sure how the curves intersects the line y=2 at the infinitive number of points, how can that be if the line y=2 is an asymptote?

1. Yeah I figured my example was correct, does my function pass the fact that "the curve intersects the line y=2 at the infinitive number of points" though? I just have no idea if it does or not. 2. I kinda figured that actually later onThank you for your answer!

Homework Statement 2 problems. 1) Find an example of a function f such that : the line y=2 is a horizontal asymptote of the curve y=f(x) the curve intersects the line y=2 at the infinitive number of points 2) The position of an object moving along x-axis is given at time t by: s(t)= 4t-4 if...