ezqfdu
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Author:
Anonymous
ID:
73804
Filename:
ezqfdu
Updated:
2011-03-19 02:31:54
Tags:
Trigonometry
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Description:
Cards for my upcoming trigonometry exam
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Trigonometry
Section 4
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