Trigonometric Functions Chapter 4, Sections 2 & 3

Right Triangles Hypotenuse Side opposite . Side adjacent to . Create a triangle to use as a study aide

Trig Functions of Right Triangles Opp Hyp Adj 

Finding Values using Trig Functions Handout

Solving Right Triangles Handout

Special Right Triangles: 45-45-90 1 Create a triangle to use as a study aide

Special Right Triangles: 30-60-90 2 1 30 Create a triangle to use as a study aide

Finding trig values without calculator Angle Radian Sin Cos Tan Csc Sec Cot 30 45 60

Calculator Concerns When working with angles in degrees – calculator should be in degrees When working with angles that have a π – calculator should be in radians To get csc x on calculator – do (sin x)-1 To get sec x on calculator – do (cos x)-1 To get cot x on calculator – do (tan x)-1

Trig Functions of any angle X  Create triangles to use as a study aide

Finding trig functions of any angle P(4,-3) P(-1,-1) P(3,4) P(-4,-6) P(-3,0) P(5,-2) 315º -210º 5π/3 -3π/4

In Conclusion Exit Slip: Exploration 1 on page 363 Homework: