Chapter 13: Trigonometric and Circular Functions Section 13-3: Definitions of Trigonometric and Circular Functions Chapter 13: Trigonometric and Circular Functions
Objectives Find exact values of the six trigonometric or circular functions if the angle is a multiple of 30º or 45º.
Recall: “SOHCAHTOA” stands for: What about the reciprocal functions? Sin= Cos= Tan= What about the reciprocal functions? Csc= Sec= Cot=
From Geometry :D The “Isosceles Right Triangle Theorem” says: The two legs of an isosceles right triangle are congruent. The hypotenuse of an isosceles right triangle is equal to:_________________ The “30-60-90 Triangle Theorem” says: The hypotenuse equals:______________ The long leg equals:________________
Quadrant Rules Remember: All Students Take Calculus!!!
HOMEWORK: p. 726 #13-75 Every other odd