For each of the differential equations given in question, find the general solution:
(1 + x2)dy + 2xy dx = cot x dx (x ≠ 0)
It is given that 
This is equation in the form of 
(where, p = 
and Q = 
)
Now, I.F. = 
Thus, the solution of the given differential equation is given by the relation:
y(I.F.) = 
Therefore, the required general solution of the given differential equation is
8