Recent content by Slimsta

someone?

Homework Statement Find three independent solutions to the differential equation \frac{d^3}{dt^3}f(t) + f(t) = 0 You should use complex exponentials to derive the solutions, but express the results in real form. Homework Equations sin\theta = \frac{e^{i\theta} - e^{-i\theta}}{2i} cos\theta =...

sweet! It made sense to me when you explained it and i was like "hmm well that's easy stuff lol" and it took me like 5 minutes to fix my mistakes haha i don't think my teach wants us to go into that deep level of explanations. if i get the same number for the result in binary and in normal...

ok that makes sense. so for part B, it would be 11+(-26) = -15 and i'd just leave the addition as 001011 + 100110 = 110001 take the 2's comp of 110001 since i have to return it to the original 2s signed # it would be 001111 which is 15 but it's negative so -15 no overflow here. then part C, -18...

Homework Statement The following binary in signed 2s complement form. Perform the indicated arithmetic operations and verify the answers. Indicate whether overflow occurs for each computation. a) 110001 – 010010 b) 001011 + 100110 c) 101110 – 110111 d) 100111 + 111001 Homework Equations The...

what i did: 27.40 * 0.781 = 21.4 52.9 * 0.811 = 42.9 62.6 * 0.856 = 53.59 there is a hint that says i have no idea how to get the common factor with those numbers.. btw i had no idea where i can post this in here so i posted here :X

someone please?

Homework Statement [PLAIN]http://img696.imageshack.us/img696/3438/46981606.jpg Homework Equations The Attempt at a Solution in those squars, I am sure about everything that i did and i get it wrong.. the only thing i don't know is bn+1 how would i know if its =, < or > than...

oh my bad.. its 1 ln(1) = 0 so the answer is Diverges, S=0. ?

\frac{2n+1}{3n-1} as n\to\infty will be 0 and for \ln\left(\frac{2n+1}{3n-1}\right) it will be ln(0) which is impossible.. but if plugging numbers like 10, 100, 1000... into \ln\left(\frac{2n+1}{3n-1}\right) the number becomes smaller and smaller all the way to -\infty so does it mean that...

Homework Statement Determine whether the series [PLAIN]http://img265.imageshack.us/img265/69/44751948.jpg converges or diverges and find its sum S if it does converge. Homework Equations The Attempt at a Solution my textbook has lots of weird examples but none of them help me...

oh i see.. little word messed up my whole answer :/ thanks man!

Homework Statement [PLAIN]http://img528.imageshack.us/img528/7061/37557155.jpg Homework Equations The Attempt at a Solution i don't understand, what can possibly wrong with this :S I checked it so many times over and over but everything seems to be right.. i don't even have this feeling about...

Homework Statement [PLAIN]http://img204.imageshack.us/img204/946/helph.jpg Homework Equations The Attempt at a Solution I have not idea what to write.. i read the whole chapter twice and don't know where to start :S

i got 2.087 once i got y = (-8x + 19)^0.25 y-int is when x=0 so y=19^0.25 = 2.087 its weird how the slope they gave us don't even help.. its there to make the question scary i guess.