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Trapezium rule - but cooler functions
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Area from trapezium
Area from trapezium
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15
AB
AB
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20
trapezia shade in
trapezia shade in
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27
desmos calced area and error
desmos calced area and error
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33
Rounding
Rounding
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37
Expression 39: "d"
d
equals
=
0.8
0
.
8
39
vert lines
vert lines
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40
46
powered by
powered by
using rule area = 0.834
(3 dp)
actual = 0.919
Error = 9.232%
Area= -0.046
Area= -1.032
Area= -1.251
Area= 0.688
Area= 2.707
Area= 1.404
Area= -2.552
Area= -4.009
Area= -0.039
Area= 4.964
A(drag)
A(drag)
B(drag)
B(drag)
"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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