\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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\(\pi\)
e
\(\frac{a}{b}\)
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
7
8
9
\(\div\)
log
ln
4
5
6
\(\times\)
cos
cos⁻¹
1
2
3
-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
Each day, I walk more and more steps. On day \(0\), I walk \(u_0=1000\) steps. Each day, I walk \(500\) steps more than the day before.
Let \(u_n\) be the number of steps I have walked at the end of day \(n\). What are the first three terms of the sequence \((u_n)\)?
\(u_1 =\)
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
steps
\(u_2 =\)
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
steps
\(u_3 =\)
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
steps
What is its recursive rule?
\(u_{n+1}=\)
\(\pi\)
\(e\)
\(x\)
\(n\)
\(u_n\)
\(f\)
\(\frac{a}{b}\)
\(\sqrt{\,}\)
\({a}^{b}\)
\(\ln{\,}\)
\(\log{\,}\)
!
7
8
9
←
→
\(\sin{\,}\)
4
5
6
(
)
\(\cos{\,}\)
1
2
3
\(\times\)
\(\div\)
\(\tan{\,}\)
C
0
.
+
-
=
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