math 3 14
x
a
b
f
x
∑
x
=
a
b
f
x
x
x
B
f
x
∑
x
∈
B
f
x
B
f
∑
B
f
i
0
100
x
i
sum
integer_interval
0
100
lambda
i
power
x
i
x
a
b
f
x
∏
x
=
a
b
f
x
x
x
B
f
x
∏
x
∈
B
f
x
i
0
100
x
i
product
integer_interval
0
100
lambda
i
power
x
i
x
0
x
lim
x
→
0
sin
x
x
x
0
x
lim
x
→
0
sin
x
x
x
a
x
lim
x
→
a
+
sin
x
x
x
0
expression-in-x
limit
0
null
lambda
x
expression-in-x
x
2
a
2
x
2
→
a
2
+
x
y
f
x
y
g
x
y
x
y
→
f
x
y
g
x
y
tendsto
x
sin
x
x
x
3
sin
(
cos
x
+
x
3
)
x
arcsin
x
sin
-
1
x
x
sinh
x
x
arcsinh
x
sinh
-
1
x
x
e
x
a
ln
a
3
x
log
3
x
x
log
x
2
x
y
plus
log
2
x
log
10
y
3
4
3
7
4
⟨
3
,
4
,
3
,
7
,
4
⟩
X
⟨
X
⟩
X
¯
3
4
2
2
σ
3
4
2
2
X
σ
X