Solve the following lengendre differential equation.
(1-x2)y"-2xy'+l(l+1)y=0
Using power series method,solve the following differential equation
(x3+3)y"+4xy'+y=0
find the relation between D and Δ of following differential equation 4(2x+1)^2 d^2y/dy^2 -4(2x+1)dy/dx + 3y =ln(2x+1))