Category: Mathematics

Solution: How long will it take to cool from 100° to 50°?

Solution: Find the equation of the family of orthogonal trajectories of the system of parabolas y^2=2x+C

Solution: What is the percentage lost of Radium in 100 years?

Solution: If population of a country doubles in 50 years, how many years will it be five times as much?

Solution: How many mg of Radium will be left after 100 years?

Solution: Determine the differential equation of the family of circles with center on the y-axis

Solution: Determine the differential equation of the family of lines passing through (h, k)

Solution: What is the differential equation of the family of parabolas?

Solution: Find the differential equations of the family of lines passing through the origin

Solution: Solve the linear equation: dy/dx + y/x = x^2