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Expression 1: "x" negative 1 half positive Start sum from "n" equals 1 to "k" , end sum, StartFraction, sin left parenthesis, 2 "n" pi "x" , right parenthesis Over "n" pi , EndFraction
x
−
1
2
+
k
∑
n
=
1
s
i
n
2
n
π
x
n
π
1
Expression 2: "k" equals 12.4
k
=
1
2
.
4
1
1
100
1
0
0
2
3
powered by
powered by
"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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