Divide the generic DE by the leading coefficient ₂(x) and put it into standard form:
y ′′ + P(x)y ′ + (x)y = 0
Using our known solution y₁(x), we’ll plug in our guess of a solution y = (x)y₁(x) into the above DE and find out what we get.

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

How many 2/5s are in 1 and 1/2 plz someone me right now