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F
fresh_42
replied to the thread
Complex numbers
.
de Moivre says (\cos(x) +i \sin(x))^n =\cos(nx) + i \sin(nx) and we are interested in \cos(5x). Hence, \begin{array}{lll}...
Apr 26, 2024
A
Aion
replied to the thread
Complex numbers
.
If you compare your result with the required one it is apparent you made a mistake at the start of the derivation. I recommend using the...
Apr 26, 2024
M
mario99
replied to the thread
Superposition Principle Undetermined Coefficients
.
It is telling you that because the auxiliary equation has r = i or r = -i, the guess for the particular solution will be y_p(t) = t(At +...
Apr 26, 2024
H
HATLEY1997
posted the thread
Complex numbers
in
Intermediate/Advanced Algebra
.
I have got this down to the real numbers (I think). But struggling with what to do at the end here to get the required trig identity...
Apr 26, 2024
Integrate
posted the thread
Superposition Principle Undetermined Coefficients
in
Calculus
.
If I understand the superposition principle of undetermined coefficients then that means we can take each part on the right hand side...
Apr 26, 2024
Integrate
replied to the thread
What determines how we group in method of undetermined coefficients?
.
I was wondering why they grouped the way they did. Which after working it through their way I see it is much easier to group with the...
Apr 26, 2024
Integrate
replied to the thread
What determines how we group in method of undetermined coefficients?
.
This very much helps me understand what a linear combination is for sure. Something that I did not understand fully. Though I am...
Apr 26, 2024
Integrate
reacted to
Steven G's post
in the thread
What determines how we group in method of undetermined coefficients?
with
Like
.
If you have a set of functions which you multiply each function by a scalar and then add these together you have a linear combination of...
Apr 26, 2024
Dr.Peterson
replied to the thread
How to start this question?
.
Check the details; I don't think everything is exactly right, but I don't have time to examine it in detail. (I'm preparing for a trip...
Apr 26, 2024
K
Kulla_9289
replied to the thread
How to start this question?
.
OX = (3p/2) + q FY = 2p + 2q + zBD BD = 2q So, (3p/2) + q = a(2p + 2q + z(2q))
Apr 26, 2024
Dr.Peterson
replied to the thread
How to start this question?
.
Keep going. Express OX in terms of p and q. And then express FY in terms of p and q and another scalar, using the fact that Y is on BD...
Apr 26, 2024
L
lljj
posted the thread
matrix transformation to generate a sequence.
in
Advanced Math
.
PROBLEM A graphic designer, Ben, wants to create an animation in which a sequence of squares is created by composition of successive...
Apr 26, 2024
K
Kulla_9289
replied to the thread
How to start this question?
.
OX = aFY
Apr 26, 2024
M
matej
posted the thread
each left derived functor is ...
in
Intermediate/Advanced Algebra
.
Hi, I'm an algebra student and I'd like to ask for help with an example, because I don't know how to do it at all. I will be grateful...
Apr 25, 2024
Dr.Peterson
replied to the thread
How to start this question?
.
Yes (and collinear is essentially the same thing, since vectors have no specific location). So write a vector equation expressing the...
Apr 25, 2024
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