Thank you for pointing that out. I admit that I was careless on my behalf and caused unnecessary quagmire.
@Vela: Yes, that should pretty much clear it up then. Sorry for all the trouble, but I was unsure what to make of the original question at that moment...
@LCKurtz: Ah, alright. Thanks...
@uart: Quite sure it is the one in the OP.
@HallsofIvy:
Thank you for reminding me about that post too.
From referring to the thread itself, it seems unlikely for α, β, and γ to hold irrational numbers when the coefficient themselves are rational.
But in that case, the resultant answers...
No worries, the resulting discussion is interesting to read actually; in a way it answers the question pretty well.
Please do carry on.
Otherwise I was just speculating if the answer be in terms of
[[a/\sqrt[3]{n}];[b/\sqrt[3]{n}];[c/\sqrt[3]{n}]
Or anything similar.
Uhm. But referring...
I have been seeing a few during in my practice questions which leaves me worrying.
If it is a quadratic function, the irrational numbers can be easily obtained using the equation.
However, I got a question today which eventually took this form:
28D3+36D2-41D2+4 = 0
(I reevaluated...
Hello,
LCKurtz: Alright I'll keep that in mind. I had not much prior encounters with ellipsis because I try not to use them; but this and the other advices would be very very helpful to remember in a pinch, thank you very much.
Vela: So that was what I was missing. I have thought about it...
So I've gotten into the Method of Frobenius and all; Solved a few questions, however the most inconvenient part would be the formulation of the general equations for the final answer.
Granted, the lecturer told us to not spend so much time on that segment due to its minimal weightage, but I...
Oh okay, I see it.
Thank you for helping me through this topic tiny-tim. :)
I'm glad to walk off with a better understanding now.
[SIZE="1"]also, apologies for the late reply.
Sorry for the late reply.
Aha. That clears it up a lot. Thank you.
Okay I see the picture better now.
L is the component that will give Φ= 90 degree when under a pure inductive load.
And to have Φ<90 we would have to include R as one of the component.
Is that right? So it means that...
Thank you for the warm welcome tiny-tim :smile:
The current lags so I suppose
Φ= -50 degrees (?)
If |Z| cos Φ + j|Z| sin Φ = R + jX
let
|Z| cos Φ = R
|Z| = 33.336 ohm (?)
then if
j|Z| sin Φ = jX
jX = -25.5368 j
Therefore, j= -j (?)
I'm sorry, but the idea wasn't covered in...
Homework Statement
A circuit contains two elements which are either L, R or C. The current in the circuit lags the source by 50 degrees when connected to a 120V, 60 Hz and i= 5.6A source.
Homework Equations
tan Φ = X/R
X= wL
R= V/I
The Attempt at a Solution
(The question does not...