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PreCalc Review 120720 Flashcards | StudBud
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PreCalc Review 120720
PreCalc Review 120720
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1
What goes in the circled part of the unit circle?
300°
210°
315°
330°
2
What phrase to remember the trigonometry functions
SOH-CAH-TOA
SCT-OHO-HHA
SOH-CAH-TAO
SAH-COA-TOH
3
Trigonometry...
4⎷5
⎷20
⎷5
2⎷5
4
Using trigonometry you can
calculate angles of elevation
calculate unknown angles
calculate angles of depression
calculate unknown side lengths
5
What goes in the circled part of the unit circle?
π
3π/4
π/2
2π/3
6
What goes in the circled part of the unit circle?
π
5π/2
3π/2
2π
7
Using your unit circle, what is the tangent of 4π/3?
-√3
1/2
1
√3
8
What phrase to remember the trigonometry functions
SOH-CAH-TOA
SAH-COA-TOH
SCT-OHO-HHA
SOH-CAH-TAO
9
Maria stands 57 feet away and looks up at 42 angle to see her cat in a tree?How high is the cat
X=66.2
X=45.7
X=51.30
x=52.30
10
Pythagoras or Trigonometry
Pythagoras
Neither
Trigonometry
11
Functions...
-8 and -4
-8 and 2
-9 and 2
-9 and -4
12
Combine these sentences without changing the meaning
: The dog is hungry. The cat is hungry.
The dog is hungry and the cat is hungry.
The dog and cat are hungry.
The dog is hungry and the cat.
The dog and cat is hungry.
13
SOH in SOH CAH TOA is What over what?
Opposite over Opposite
Opposite over Adjacent
Opposite over Hypotenouse
14
What is the circumference of a circle with a 10 unit diameter?
31.4
68
100
314
15
What is the trigonometric ratio for SOH
Sine= Opposite/Hypotenuse
Cosine=Adjacent/Hypotenuse
Sine=Hypotenuse/Adjacent
Tangent=Opposite/Adjacent
16
What does trigonometry deal with?
circles
triangles
parallelograms
hexagon
17
How to find the format of SOH CAH TOA?
Sin/Cos/Tin
Sas/Cus/Tan
Sin/Cos/Tan
San/Cos/Tan
18
When is TOA used?
A side that's Adjacent at 30°
When the Opposite is half the Hypotenuse
A side Adjacent to the angle of the Opposite
When the Hypotenuse is with the Opposite
19
In the unit circle shown, what are the coordinates of
B
?
(√2/2, -√2/2)
(√2/2, √2/2)
(-√2/2, -√2/2)
(-√2/2, √2/2)
