The flashcards below were created by user
Anonymous
on FreezingBlue Flashcards.


Sine(theta)
opposite/hypothenuse

Cosine(theta)
adjacent/Hypothenuse

Tangent(theta)
opposite/adjacent

Cosecant(theta)
hypothenuse/opposite

Secant(theta)
hypothenuse/adjacent

Cotangent(theta)
adjacent/opposite

if t is any real number, what is cos t?
cos t = x

if t is any real number, what is sin t?
sin t = y

if t is any real number, what is tan t?
tan t = y/x, x cannot equal 0

if t is any real number, what is csc t?
csc t = 1/y, y cannot equal 0

if t is any real number, what is sec t?
sec t = 1/x, x cannot equal 0

if t is any real number, what is cot t?
cot t = x/y, y cannot equal 0

when P(x,y) are the points belonging to t, what are the corresponding trig functions on the unit circle?
P(x,y) = (cos t, sin t)

What is the relationship between cos t and cos (t)?
 they are always equal to each other.
 cos t = cos (t)

What is the relationship between sin t and sin (t)?
 they are always equal to each other.
 sin t = sin (t)

What is the relationship between sin t and sin (t + 2pi)?
 they are always equal to each other
 sin t = sin (t + 2pi)

What is the relationship between sin t and sin (t + pi)?
they are always opposite to each other

What is the relationship between tan t and tan (t + pi)?
 they are always equal to each other
 tan t = tan (t + pi)

What is the sum of (cos t)^2 + (sin t)^2?
(cos t)^2 + (sin t)^2 = 1

What are the radian values for 30, 45, and 60 degrees?
 30 degrees = pi/6
 45 degrees = pi/4
 60 degrees = pi/3

