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Byju's Answer
Standard IX
Mathematics
Laws of Exponents for Real Numbers
If x = 7 + ...
Question
If
x
=
7
+
4
√
3
find the value of
x
+
1
x
.
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Solution
Let,
x
=
7
+
4
√
3
then
1
x
=
1
7
+
4
√
3
=
7
−
4
√
3
.
Now
x
+
1
x
=
(
7
+
4
√
3
)
+
(
7
−
4
√
3
)
=
14
.
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