Unformatted text preview: Trigonometric Ratios
Trigonometric
Section 10.1 Special Right Triangles
Special
x x2 o 45 o
45 x 60oo
60 2x
30o o x 45 3x Degrees 00
Degrees 450 600 900 0 π
6 π
4 π
3 π
2 sin θ
cos θ 0 1
cos
sin
21θ 2
2 3
2 1 1 2
2 1
2 0 tan θ 3
2 0 3
3 Radians 300 1 3 Und. S All T C To solve an equation, find your reference
find
angle, find the two quadrants your angle is
in (positive or negative) and then use the
diagram below.
diagram Joke Time
Joke Who Sir designed King Arthur’s round table? Cumference • Why is an obtuse angle always
Why
sad?
sad? • Because it’s never RIGHT Which triangles are the coldest? ICEsosceles triangles ...
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This note was uploaded on 12/01/2011 for the course MATH 112 taught by Professor Jarvis during the Fall '08 term at BYU.
 Fall '08
 JARVIS
 Calculus, Ratios, Angles, Trigonometric Ratios

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