Let r=6x5/4,x>0. Use differentials to estimate the percentage change in r, if x increases by 4 . What is the percentage change in r?
Let r=6x5/4,x>0. Use differentials to estimate the percentage change in r, if x increases by 4 . What is the percentage change in r?
m.(d2x/dt2) + R(dx/dt) -kx=0 when m= x2 , R= x-x2 , k=1 I have no idea of what method to use to get the solution.
Supposed to find using inspection method
System of 1)diff(u(x,y),x)+[4*diff(v(x,y),y)]=0 2)diff(v(x,y),x)+[9*diff(u(x,y),y)]=0 with u(x,0)=2*x and v(x,0)=3*x a)Convert to pde second order b)Characteristics...
V=10*t-(t2)/20 a) State the logical domain of the function, i.e. the values of t during which soil is being removed. b) At what rate is the soil is being removed at the end of...
I'm confused on this topic in my Diff Eq class.
How do you solve this differential equation, (x-y2 )dx + 2xy dy =0
a) On January 1 2000, the park estimated that they had 500 deer on their land. Two years later, they estimated that there were 550 deer on the land. Assume that the number of deer was changing exponentially,...
Suppose that 120 deer are placed in a protected region. If the region can support a maximum deer population of 500, then the bounded growth model for the deer population gives us which differential...
Supply voltage of a DC motor is given by: V(t)=Ri(t)+L (d i(t))/dt+kω(t) Here i(t) is the current through the coil, R is the resistance, L is the inductance of coils, ω(t) is the angular...
Solve by series of expansion: Put in closed form: 2xy'' + (1-2x^2)y' - 4xy = 0
xy + y' = 160x
Learning about homogeneous functions and this was the example given to practice this topic.
I'm having trouble doing a linear laplace transform. The question is solve for ivp y'' -2y' +2y = cos t y(0) = 1, y'(0) = 0
For the differential equation: 2(1-x)y''-3y'+(y/x)=0 What are the singular points and determine whether they are regular or irregular? Then find the roots of the indicial equation Thank...
Can u help me solve this problem: (cos y) dy/dx - sin(y) = x, where y(0)=0
A toilet cistern was emptied and refilled and the following data obtained: t = [ 0 2 3 4 5 8 14 23 28 34 41 53 74] time in seconds h = [17.5 11 7 4 2 0.5 5 10 12 15 16 17 17.5]; height...
Please could someone show me a step by step method that works for all these kind of problems.
By using the Green's function, solve: y''-αy =e^(-αx) with initial conditions y(0)=y'(0) = 0 thank you to whoever can do this in detail for me :)
i dont know how to deal with e and sine in the same equation.