Calculate the distance between the given points, and nd the midpoint of the segment joining them. (2, 12) and (7, 15)

Lecture 3: Trigonometric Functions (Section 1.4) Read pp. 25−29 of the textbook and ﬁll out pp. 1−3o the lecture notes before class: 1. Unit conversion: degrees ←→radians 2. Trigonometric functions P(x,y) hypotenus opposite θ θ adjacent c s sinθ = c θ = c e cosθ = s θ = t o tanθ = c θ = In general, let P (x