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Differential Equations
Page 7
Questions (803)
y"'-3y"-3y'=x^2e^x where y(0)=1, y'(0)=2, y"(0)=0
show step
3 answers
asked by
mayeriwe
261 views
Verify whether the given equation (y=x^2+4x) is a solution to this given equation [(xdy/dx)=x^2+y]
1 answer
asked by
Mycah
365 views
i need help understanding this question? can some one tell me what exactly i have to do in it
7. Suppose a student carrying a flu
2 answers
asked by
javeria
557 views
Calculate the commutator [ p, e^ik.x ] where the function e^ik.x may be expanded as:
e^ik.x = ∑infinite,n=0 (ik.x^n/n!)
1 answer
asked by
gourav
301 views
How to determine the order and degree of this differential equation, (y''')^2-2(y')^6=x-2
1 answer
asked by
Liv
343 views
So I have the following differential equation.
The general solution I have is: t=k(-1/r)+c I now need to find the particular
4 answers
asked by
Anon
627 views
Hiya,
Dt/dr =k/r^2 Is this directly solvable or do I need to separate variables. I've got t=-k/r+c from the former and something
3 answers
asked by
Anon
360 views
A spherical balloon remains spherical as it is slowly inflated. The radius of the balloon r (in cm) at time t (in seconds)
2 answers
asked by
Anon
594 views
Gent dose at 10:26am over 30 minutes and levels were reported as 3.6 at 13:07 and 1.2 at 16:59. Calculate k.
Help
5 answers
asked by
Diane
266 views
I am so confused on how to solve this problem. I have it set up with y's on one side and x's on the other but I don't know what
2 answers
asked by
Lucy
678 views
Find the differential equation from the
function y=Ae^3x +Be^2x +Ce^x. Using the method of determinant.
2 answers
asked by
putman/raj
800 views
(2y-1)dy/dx=(3x^2+1) given that x=1 when y=2
plz show step thanks 2) (a)find the general solution of the equation
2 answers
asked by
...
871 views
We are working on finding the particular solution for the first-order linear constant-coefficient ordinary differential
1 answer
asked by
sengeni
459 views
Assume that the number of fish P(t) after t years grows according to the logistic equation
dP/dt= P(a-bP) = bP(300 − P) Find
2 answers
asked by
Erica
479 views
I am having trouble figuring out where to start with this one.
Biologists stocked a lake with 40 fish and estimated the carrying
2 answers
asked by
Erica
569 views
determine a series if solution of the equation y"(x)+x.y'(x)+y(x)=0
show me step plz
2 answers
asked by
philip
465 views
Instructions Assume that goat milk butter melts at {85.25}^{\circ} F. On a summer day you take a stick of butter out of the
3 answers
asked by
Erica
489 views
((3y^2)dx/(x^2+3x)) +( ( 2y ln ((5x)/(x+3))+ 3siny)dy=0
Please help me in solving this problem using exact differential equation.
2 answers
asked by
Anonymous
581 views
solve d^2y/dx^2+y=tanx
show working plz i don't no it at all
1 answer
asked by
dams
392 views
Search Results
A tank contains 100L of water. A solution with a salt concentration of 0.8kg/L is added at a rate of 7L/min. The
3 answers
asked by
dhabeya
694 views
show that
2f''(t)-f'(t)-f(t)=sin(t)-cos(t) where f(0)=f'(0) has the solution (-2/5)e^(-t/2)-(1/5)sin(t)+(2/5)cos(t) using laplace
1 answer
asked by
dam
424 views
if y=e^(-kt)[Acosh(qt)+Bsinh(qt)]
where A,B,q and k are constant show that d^2y/dt^2+2kdy/dt+(k^2-q^2)y=0 step plz thanks
1 answer
asked by
samuel
428 views
Solve the simultaneous differential equations
L(di1/dt)+Ri1+(1/2)L(di2/dt)=E L(di2/dt)+Ri2+(1/2)L(di1/dt)=0 where 𝐿, 𝑅, and
1 answer
asked by
thigan
382 views
consider the differential equation
d^3x/dt^3 - 9(d^2x/dt^2)+ 27(dx/dt) -27x = c0s t +sin t + te^(3t) a) show that characteristic
2 answers
asked by
thigan
764 views
Use Euler's method with a step size of 0.2 to estimate y(1), where y(x) is the solution of the initial value problem y' =
2 answers
asked by
TayB
799 views
Find the solution of the differential equation that satisfies the given initial condition.
du/dt= (2t + sec^2(t))/(2u), u(0) =
4 answers
asked by
TayB
731 views
The particular solution of the differential equation dy/dt=2*y for which y(0) = 60 is
y = 60e2t y = 60 e0.5t y = 59 + et <- my
1 answer
asked by
Babe Mckay
367 views
Solve the differential equation below
(Y + y^3/3 + x^2/2)dx + 1/4(1 + y^2)xdy=0
1 answer
asked by
BEN
395 views
in this problem we consider an equation in differential form M dx+N dy=0
(2y-2xy^2)dx+(2x-2x^2y)dy=0 give implicit general
2 answers
asked by
Anonymous
631 views
4. Write down a differential equation to express each of the following relationships:
(a) The rate at which the volume of a
5 answers
asked by
Sarah
547 views
Find the function y = y(x) which solves the initial value problem: 4sec(x)*dy/dx = e^(y+sin(x)) where y(0) = -5
1 answer
asked by
Anon
397 views
Dy/dx=(X+x^3)/y
help show working
5 answers
asked by
Collins
301 views
Solve the Poisson equation ∇^2u = sin(πx) for 0 ≤ x ≤ 1and 0 ≤ y ≤ 1 with boundary conditions u(x, 0) = x for 0 ≤ x
2 answers
asked by
Help please!
478 views
Convert x''+ sin(x) = 0 into a first order system of equations. (x'' refers to the second derivative of x).
I tried: y1 = sin(x)
1 answer
asked by
Sarah
418 views
Find dy/dx if x^2.y+sin(xy)+y^4.x^2+3xy=5???
1 answer
asked by
Collins
340 views
solve using linear 3ydx=(3x^2-1)(dx-dy)
1 answer
asked by
rekl
335 views
The displacement from equilibrium of an oscillating weight suspended by a spring and subject to the damping effect of friction
2 answers
asked by
Anonymous
947 views
show that any fuction
y(t)=acosx+bsinx ,satisfied the differential equation y^"+wy=0 and also find the value of (a) and (b)
1 answer
asked by
edward
660 views
the general solution of the diff. eq. y' = (1/x)(y/(1-y)) - (1-x)(y/(1-y))
in implicit form is?
1 answer
asked by
Anonymous
320 views
Solve x(dy/dx)=(y^2)/(1-y log x).
1 answer
asked by
Ranajoy
350 views
Determine the particular solution:
(y')^2=(1-y^2)/(1-x^2) ; y=1/2 x=1
1 answer
asked by
Kenzo
293 views
A first order linear equation in the form y′+p(x)y=f(x) can be solved by finding an integrating factor μ(x)=exp(∫p(x)dx)
(1)
5 answers
asked by
Joe
731 views
y′=12x^(3)sqrt(1+x^4)(1+y^2), y(0)=1
⇒ y= Thanks!
3 answers
asked by
Joe
304 views
y′=8e^(4x)(1+y2)solve for y(0)=−2
⇒ y= I tried to solve the problem and got the equation: tan^-1((2e^(4x)-2+tan(-2)))it
3 answers
asked by
Joe
549 views
I cant figure out how to do this type of problem!
Consider the first order differential equation
1 answer
asked by
Eric
451 views
Hi all.
I need help understanding something my book dosn't go over well. For example dy/dx=-4y is a given solution and I need to
3 answers
asked by
Joe
530 views
If the rate of change of the population is proportional to the population and the population of a country doubled in 35 years,
3 answers
asked by
Anon
507 views
Solve.
x^3 y^'''+5x^2 y^''+7xy^'+8y = t+e^(-t) **guys pls give some solution. i need help. the answer couldn't teach me anything
1 answer
asked by
ijat
433 views
Solve.
x^3 y^'''+5x^2 y^''+7xy^'+8y = t+e^(-t)
1 answer
asked by
ijat
364 views
A differential equation governing the velocity v of a falling mass m
to air resistance proportional to the square of the
3 answers
asked by
ijat
1,246 views
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