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Precalculus Finals Review Day 1 Flashcards | StudBud
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Precalculus Finals Review Day 1
Precalculus Finals Review Day 1
30 terms
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Questions
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Answers
1
The Law of Sine requires:
Opposite pair (angle and side)
Hypotenuse
A 90° triangle
Adjacent Pairs (2 side lengths)
2
Using the law of sine find A
1 m
22 m
13 m
72 degrees
3
Trigonometry
5/13
13/5
12/13
5/12
4
Arithmetic or Geometric?
Geometric
Arithmetic
5
Simplify this trigonometric expression.
cos2 x
-1
sin2 x
1
6
When can you use cosine law?
When having an angle but not having its opposite side
When having an angle and its oppsite side
When having no angles
7
Determine the sum of the infinite geometric series starting at n=1 ∑ 2(1/6)
n-1
6
no sum (diverges)
12/5
1/3
8
Find all solutions to the trigonometric equation below
x = 5π/6 + 2nπ or 7π/6 + 2nπ
x = 5π/6 or 7π/6
x = π/6 + 2nπ or 5π/6 + 2nπ
x = π/6 or 5π/6
9
Transcribe
'trigonometry'
ˌtrɪgəˈnɒmɪtree
trɪgənɒmɪtri
ˌtrɪgənɒmɪ'tri
ˌtrɪgəˈnɒmɪtri
10
Find the exact radian value
-11π/6
π/4
π/6
7π/4
11
True or False: A picture can be considered both geometric and organic
True
False
12
Find the exact radian value
2π/3
3π/4
π/3
π/4
13
Is it A
rithmetic
or Geometric or Neither?
Geometric
Neither
Arithmetic
14
Find the exact radian value
-π/4
3π/4
7π/4
5π/4
15
Heron's Formula allows you to
Find the perimeter from the area of the triangle
Find perimeter of triangle.
Find the length of one side of a triangle
Find the area of a triangle if all sides are known.
16
Is it A
rithmetic
or Geometric or Neither?
Neither
Geometric
Arithmetic
17
Would you use sine law or cosine law to solve for angle A in the triangle below?
Sine Law
Cosine Law
18
What is the RECURSIVE formula for a GEOMETRIC series?
an=a1 + d(n-1)
an=an-1 + d
a1=a1 ⋅ (r)n-1
an=an-1 ⋅ (r)
19
Using the law of Cosine, find
"b"
17
5.3
23.4
18.5
20
The most common map projections are based on three geometric shape. Which of the following geometric shapes is NOT one?
Cylinder
Square
Come
Plane
21
What quadrant does the angle lie in?
1
2
3
4
22
Rewrite radian to a degree.
157.5°
-9π/8
315/3
23π/8
23
Trigonometric Functions
D
C
B
A
24
Is it A
rithmetic
or Geometric or Neither?
Neither
Arithmetic
Geometric
25
Name the geometric figure
obtuse angle
right angle
straight angle
acute angle
26
Convert to radian
π/2
3π
3π/2
π
27
Solve for X using the angle of depression
59.8
61
49.7
59.3
28
TRIGONOMETRY
B
C
D
A
29
Mr. Choi’s next child is going to be a
Boy
Girl
30
What does θ mean in trigonometry?
Right triangle
Unknown side
a lit frat party in Greek
Unknown angle
