Let
and
Compute the distance from y to the line through u and the origin.
Let
and
Compute the distance from y to the line through u and the origin.
Formula for orthogonal projection:
Formula for distance:
A drug for the relief of asthma can be purchased from 5 different manufacturers in liquid, tablet, or capsule form, all of which come in regular and extra strength. How many different ways can a doctor prescribe the drug for a patient suffering from asthma?