Discrete mathematics: give a recursive definition of l(w), the length of the string w.

What properties allow transformation to be used as a problem solving tool

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

If cos(θ)=2853 with θin q iv, what is sin(θ)?