4.3
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Author:
DesLee26
ID:
128131
Filename:
4.3
Updated:
2012-01-16 09:51:34
Tags:
Pre Calculus
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Seniors =(
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What are the six right triangle definitions of trig functions?
Sine= opposite/ hypotenuse
Cosine= adjacent/ hypotenuse
Tangent= opp/ adj
Cosecant= hyp/ opp
Secant= hyp/adj
Cotangent= adj/ opp
What is the ratio for a 45-45-90 degree triangle?
1:1
: _/2
What is the ratio for a 30-60-90 triangle?
30:60:90
/3
: 1: 2
:
:
What are the six cofunctions in degrees?
What are the cofunctions in radians?
What is the angle of elevation?
angle formed from horizontal line to object above horizontal line
What is the angle of depression?
angle formed from horizontal line to object below horizontal line
When is the only time you use 2nd--> sin (or whatever trig function)?
when you are looking for an angle