4.2 sss and sas.notebook - mrs. villano's classes...4.2 sss and sas.notebook 4 october 15, 2018...
TRANSCRIPT
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Unit Circle
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Sine and Cosine
Domain
[ 1, 1]
Period(how long does it take until it starts
to repeat)
set of all real numbers( ∞, ∞)
Range
2π
Sin : Domain_____________ Range__________________
Cos : Domain_____________ Range__________________
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along the same lines as coterminal
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Evaluate without a calculator
Evaluate with a calculator
***make sure to use 1/trig function or can use x 1 not sin 1
Must be in radian mode!
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• coterminal to 1650 (one pos. one neg.)
• convert to radians 1320
• convert to degrees 3π 8
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Definitions of Trigonometric Functions of Any Angle
Let θ be an angle in standard position with (x, y) a point on the terminal side of θ and
(x,y)
rθ
sinθ=
cosθ=
tanθ= cotθ=
secθ=
cscθ=yr
xr
xy
yr
xr
xy
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Model Homework Problems
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Model Homework Problems
Where is this on the unit circle?
same as 60
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Model Homework Problems
same as 315
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Model Homework Problems
1.394
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https://create.kahoot.it/details/49ad3232f18841da8dd2b29b8640572c
https://create.kahoot.it/details/duplicateofunitcircle/31cec6a584fd4817a110c0a25cc8d4c2