Recent content by i2c

Yes that makes perfect sense, I just didn't know what the constants were for each, but now it looks perfect. But I still don't know how you figure out which domain it's valid over, I'll re-do the problem and play with it to see if I can find that out for myself. (other than just graphing and...

Oh right I threw a 1/3 in there by mistake because I was thinking of it like arctan(x), how you do 1/a in front, ok so now my final answer is as follows 3arcsin(\frac{\sqrt{6x-x^2}}{3}) However that is not correct, I can see if you split it between [0,3] and [3,6] and phase shifted each one up...

Yes I read your posts, but where did I go wrong? Where did I lose that factor of 3?

My answers graphed http://img8.imageshack.us/img8/5345/screenshot000us.jpg 'Correct' calculator answer http://img153.imageshack.us/img153/3094/screenshot001ir.jpg

But when I graph my solution and the calculator solution I get 2 completely different graphs, not just a C difference, so where is my problem?

Yes it is wrong. I copied and pasted both my answer and the calculator answer into Y= and graphed them, and it graphed 2 separate graphs which were not different by just a constant (i.e. a phase shift up or down) Also, when I plug in my answer into my calculator and take the derivative of...

8x*cos(x) graphs fine for me on my 89.

Homework Statement \int\frac{3}{\sqrt{6x-x^2}}dx Homework Equations NA The Attempt at a Solution http://img138.imageshack.us/img138/3744/001llo.jpg I know I should *should* have completed the square first, however I didn't see it at the time, so I tried this and got it wrong...

1. Make sure you're in Function mode, (i.e. not Polar or Sequence, etc) 2. If that doesn't work, make sure everything you want to keep (like programs/functions, etc) are archived, and press 2nd+On+Left+Right at the same time, it will reset your calculator back to stock, then it should work!

Change your mode to Float 12

try this factor(2x^2+17*x*y+y^2) xy doesn't mean x*y (it does to you and me but not to the 89)

Homework Statement Question #2 http://img830.imageshack.us/img830/8185/0000825.jpg Homework Equations The Attempt at a Solution I can of course find the derivatives for both functions. When I set them equal to each other I get x=1/2 that's where the functions have parallel tangent lines for...

Yes, except it's ln(sqrt(i root(-1))) Yes I did, and sorry about the errors I don't *really* know what I'm doing. :)

It's supposed to be perplexing. It's a sigma, on top, instead of being a number like 32 or infinity, it's a number but you have to solve the limit to find the number. The middle equation is just finding the fifth derivative of the equation. (Very easy it's just a polynomial) and then the bottom...

Yes Phi is just a constant. What branch of the complex logarithm? Um, I don't know what that means, (I'm only going to be in AP Calculus next year :)) But I can hint to you that e^(i*pi) = -1 rearranged with a ln will give you what I'm looking for. (I think a scientific calculator *should* do...