What are the 5 facets of science?
Which category can you NOT win a Nobel Prize in Mathematics or Economics?
The variables x and t satisfy the differential equation t dx/dt = (k-x^3)/2x^2 for t > 0, where k is a constant. When t = 1, x = 1 and when t = 4, x = 2. (i) Solve the differential equation, finding ...