Discover Questions

Given that y=0 when x=1, solve the differential equation
xyδy/δx=y²+4,
obtaining an expression for y² in terms of x.? If you're given 2 system of equations that are planes, and you are given a point, how to find equation of line perpendicular to given? My ring is marked rse 925. I know 925 refers to silver. What does the rse stand for? Need help answering this math problem.? Card number?