Sine
What is sin(30)?
1/2
What is cos(30)?
√3/2
What is tan(30)?
√3
Why is SOH, CAH, TOA helpful?
Helps remember the definition of sine, cosine, and tangent.
When can you use SOH-CAH-TOA?
Right Triangles
What is sin(5π/4) in radians?
-√2 /2
What is cos(5π/4) in radians?
-√2 /2
What is tan(5π/4) in radians?
1
What does SOH stand for?
sine= opposite/hypotenuse
On the unit circle is cosine on the x or y coordinate point?
x
What is sin(60)?
√3/2
What is cos(60)?
1/2
What is tan(60)?
√3
What does CAH stand for?
cosine= adjacent/hypotenuse
On the unit circle is sine on the x or y coordinate point?
y
What is sin(3π)?
0
What is cos(3π)?
-1
What is tan(π/2)?
What does TOA stand for?
tangent= opposite/adjacent
How do you find tangent on the unit circle?
tan=sin/cos