Vocabulary
Theta, θ
0
cos(t)=0 when 0≤t≤π
what is t?
π/2
cos2(t)+sin2(t)=1
what is tan(-π/2)?
(2 answers needed)
Negative angle identity
cos(t)zoom trig
-2π, 2π
-1, 1
Let 0≤t≤π/2, and sin(t)=5/6
calculate the value of tan(-t)
according to what identity, sin(-t) is equal to what?
(2 answers needed)
negative angle identity
-sin(t)How do we represent an angle that has multiple coterminal answers?
(give an example)
π/2+2kπ, answers may very
What is the graph of tan(t) where 0≤t≤2π