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Byju's Answer
Standard XII
Mathematics
Properties of Inverse Function
Given, fx =...
Question
Given,
f
(
x
)
=
sum of all natural numbers which can divide
x
completely, then find :
f
(
12
)
.
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Solution
Given,
f
(
x
)
=
sum of all natural numbers which can divide
x
completely.
Thus
f
(
12
)
=
Sum of all natrual numbers which can divide
12
completely,
Divisors of
12
are
1
,
2
,
3
,
4
,
6
,
12
.
Therefore,
f
(
12
)
=
1
+
2
+
3
+
4
+
6
+
12
=
28
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