As instructed, to find a second solution y2(x). (1 − x2)y'' 2xy' = 0; y1 = 1.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

it is reliable if two scientists recorded it