October 21, 2015
4.2 Notes Continued
Determine the value of the six trig functions.
Given sin(t) = 25 and 0 < t < π2 , find the
value of the cos(t).
θ
­ 4 , ­ 3 ( )
5 5
Find the value for all six trig functions for for θ = π 3
Find the value of all six trig functions for t = 34π
October 21, 2015
Even/Odd Properties
Use even/odd properties to evaluate:
The cosine and secant function
are even, meaning cos(-t) = cos(t)
and sec(-t) = sec (t)
All other trig functions are odd.
sin(-t) = -sin (t)
Reciprocal Identities
tan(-t) = -tan(t)
Simplify:
October 21, 2015
1
Pg 520 3-69 x 3
due Friday
1 + tan2x = sec2x
Quiz practice is online
Quiz tomorrow
Piecewise functions
4.1 Angles
Standard Position
Coterminal Angles
Reference Angles
Degrees/Radians
Angular/Linear Velocity
4.2 Unit Circle Only
4.3 Right Triangle trig