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Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Evaluate Trigonometric Functions
Objective:Given an angle or ordered pair students will be able to find & evaluate all six trigonometric functions.
Section 4.4
Study Problems
Page 320 # 1, 5, 19, 3138, 7983 odd, 97
Think Pair Share1.
2.
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
What are the trig functions if the circle does not have a radius of 1?
Trig Functions at any Angle
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Think Pair Share
Let (4, 3) be a point on the terminal side of an angle 0 in standard position. Evaluate the six trig function at the angle 0.
Example
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Let cos 0 = 3/5 where 0 is an acute angle. Find the other trig function using the trig identities.
Example
Think pair share
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Derive the Pythagorean Identities using the unit circle and Pythagorean Theorem
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Let 0 be an angle is Quadrant II such that sin 0 = 1/3. Find
a) Cos 0 and
b) Tan 0
by using trig identities.
Example
The terminal side of 0 lies on y=x/3 in quadrant III. Find the value of the six trig function.
Example
Section 4.4 Part 5 Trig Func for any angle.notebook December 11, 2017
Find two solutions of the equation where
a)
b)
Example