Binary multiplication uses the same technique as decimal multiplication.
Determining whether a relation is a function involves making sure that for every input there is only one output. In order for a relation to be called a function, each X value must have exactly one Y value. X has to have exactly one Y value.
Theta = 7pi/4+2pi*n
Theta = 5pi/4+2pi*n
recall <u>the fundamental theorem of algebra</u>, as many roots as the degree of the polynomial.