Recent content by Lucy77

Thanks, The third one should be 4/(s-2)^2+16. Do I have to combine all of these. Am unsure about that part. Thanks

Find laplace transfom (t-1)cos3t + e^(2t)sin4t f(t) = t*cos(3*t) g(t) = -cos(3*t) h(t) = e2*t*sin(4*t) int e^(-st) * t* cos(3*t)dt = s^(2)-9/(s^(2)+9)^2 g(t)= -1/(s^2+9) h(t)= (s-2)/(s-2)^2 +16 am I done and right? Thanks

Hi, I have a couple of more that I did. Could someone please check and see if these are right. 1. FIND THE LAPLACE Transform of the unknown solution function for the following initial value problem: y" + 4y' - 5y = te^(t), y(0) = 1, y'(0)=0 (Do Not actually find the function, only...

Hi I just did two more Laplace problems can anyone please tell me if they're correct. 1.Solve the following intital value problem using the method of Laplace transforms. y'' - 10y' + 25y = e^5t y(0)=0 y'(0)=0 y"- 10y'+ 25y= e5t becomes -y'(0)- sy(0)+ L(y)- 10f(0)+ 10L(y)+ 25L(y)=...

If the values of the joint probability density of Y1 and Y2 are as shown: 0 1 2 total 0 1/12 1/6 1/24 35/120 1 1/4 1/4 1/40 63/120 2 1/8 1/20 ... 21/120 3 1/120 ... ... 1/20 ttl 56/120 56/120 8/120 1 whew ;-) ok Find a) P (Y1=0) b) P(Y2=1 | Y1=1) c P(Y2=1) e Check if Y1...

This one has me stumped Find the Laplace Transform of the unknown solution function for the following initial value problem: y'' + 4y' - 5y = te^t, y(0)=1, y'(0)= 0 (Do Not actually find the function, only its transform. Then, without carrying out the steps, indiacate briefly how you...

If the values of the joint probability density of Y1 and Y2 are as shown: 0 1 2 total 0 1/12 1/6 1/24 35/120 1 1/4 1/4 1/40 63/120 2 1/8 1/20 ... 21/120 3 1/120 ... ...

Is this right e 1/(s-1) + 2* 4!/s^5- s/(s^2+16) + 10/s am I done? Thanks

But I don't know how to apply what you said to this problem. Can you please show me how?

Find Laplace Transform of... (e^t + 2t^4 - cos (4t) + 10) Thank you