Recent content by dvs77

hello can anybody tellme about atomic numbers,valances,n related topics :smile:

I mean u get a First order or second order partial differential equation

erwin kreziog advanced engineering mathematics book is very nice

let x(u,v),and u,v are functions of y then dx/dy=∂x/∂u.∂u/∂y+∂x/∂v.∂v/∂y

i understand the equations but the theory ...

i didn't understand what u said

d(y1+y2)/dx+P(y1+y2)=(dy1/dx+py1)+(dy2/dx+py2) =q(x)+r(x) since q and r are solutions of those non homogeneous differential equations

ln(x-10)-lnx=ln(x-10/x); at t=150 ln140/150=150/1000+c

form the differential equation for the follwing equation (x^2)/a^2 +(y^2)/b^2+(Z^2)/c^2 =1

dx/x(x-10)=dt/10000 use partial fractions

dx/dt=(x^2-10x)/10000 solve this equation u ll get corrct solution

start with power series y=x^m(sigma an x^n)