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Trigonometriopgave
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forudsat at
forudsat at
17
Expression 18: 4sine alpha equals "x" Subscript, 1 , Baseline
4
s
i
n
α
=
x
1
18
Altså er vinkel
Altså er vinkel
19
Expression 20: "A" equals 2 alpha
A
=
2
α
equals
=
82.8 1 9 2 4 4 2 1 8 5
8
2
.
8
1
9
2
4
4
2
1
8
5
20
Og da
Og da
21
Expression 22: tangent "A" equals StartFraction, "a" Over 3 , EndFraction
t
a
n
A
=
a
3
22
er A's modstående side
er A's modstående side
23
Expression 24: "a" equals 3tangent "A"
a
=
3
t
a
n
A
equals
=
23.8 1 1 7 6 1 7 9 9 6
2
3
.
8
1
1
7
6
1
7
9
9
6
24
Dermed er hypotenusen
Dermed er hypotenusen
25
Expression 26: "c" equals StartRoot, "b" squared plus "a" squared , EndRoot
c
=
b
2
+
a
2
equals
=
24
2
4
26
Da vinklerne A og C kendes,
Da vinklerne A og C kendes,
27
kan vinkel B beregnes sådan:
kan vinkel B beregnes sådan:
28
Expression 29: "B" equals 180 minus "A" minus "C"
B
=
1
8
0
−
A
−
C
equals
=
7.1 8 0 7 5 5 7 8 1 4 6
7
.
1
8
0
7
5
5
7
8
1
4
6
29
Vinkelhalveringslinje
Vinkelhalveringslinje
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30
Expression 31: left parenthesis, "b" "t" , "x" Subscript, 1 , Baseline "t" , right parenthesis
b
t
,
x
1
t
0
0
domain t Minimum:
less than or equal to "t" less than or equal to
≤
t
≤
1
1
domain t Maximum:
31
Toppunktskoordinater
Toppunktskoordinater
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32
Trekant
Trekant
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39
Punkter
Punkter
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43
48
powered by
powered by
"A"
A
"B"
B
"C"
C
"x" Subscript, 1 , Baseline equals 2.6 4 5 7 5 1 3
x
1
=
2
.
6
4
5
7
5
1
3
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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