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Byju's Answer
Standard XII
Mathematics
Squaring an Inequality
root x minus ...
Question
root x minus 1/root x=5 find xsquare plus 1/x square
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Solution
Dear Student,
x
-
1
x
=
5
⇒
x
-
1
x
2
=
5
2
=
25
⇒
x
+
1
x
-
2
x
1
x
=
25
⇒
x
+
1
x
=
25
+
2
=
27
⇒
x
+
1
x
2
=
27
2
=
729
⇒
x
2
+
1
x
2
+
2
x
1
x
=
729
⇒
x
2
+
1
x
2
=
729
-
2
=
727
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