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C
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\(\pi\)
e
\(\frac{a}{b}\)
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
7
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9
\(\div\)
log
ln
4
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\(\times\)
cos
cos⁻¹
1
2
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-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
The math marks (out of 20) for a group of students are: $$4, 12, 9, 7, 11, 15, 8, 6, 14$$
Find the range of the marks.
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
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