ANSWERS: 2
  • The question (I couldn't get it to upload) http://img137.imageshack.us/img137/8140/mathsje1.jpg
  • Substitute the example solutions given into the differential equation to show that the left hand side also evaluates to zero. [d2/dx = differentiate twice] In the next equation add -25y to both sides. See something familiar? What is w0 in this case? What are some example solutions? In the third part you are being asked to show A sin x + B cos x = C cos (x - p) for some C and p. In other words, find C and p in terms of A and B. You need a trig formula for this. cos(x - p) = cos x cos p + sin x sin p Now you have C cos p = A and C cos p = B Sovle the equations for C and p in terms of A and B

Copyright 2023, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy