First-order linear differential equations
1. dy/dt + ycost = 0 (find the general solution)
2. dy/dt -2ty = t (find the solution of the following ivp)

Step-by-step explanation:

1. Given differential equation is

On integrating both sides, we will have

Hence, the solution of given differential equation can be given by

2. Given differential equation,

On integrating both sides, we will have

Hence, the solution of given differential equation is

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun