Rationalise the denomination of 5/√3-√5
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1
−
2
5
(
3
+
5
)
here,
3
−
5
5
=
3
−
5
5
×
3
+
5
3
+
5
=
3−5
5(
3
+
5
)
=−
2
5
(
3
+
5
)
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