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Standard IX
Mathematics
Rationalisation
Question
The conjugate surd of
2
−
√
3
is ___________.
−
2
+
√
3
2
−
(
−
√
3
)
3
+
√
2
1
2
−
√
3
A
2
−
(
−
√
3
)
B
3
+
√
2
C
1
2
−
√
3
D
−
2
+
√
3
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Solution
Verified by Toppr
The conjugate surd of
2
−
√
3
is
=
2
−
(
−
√
3
)
i.e The conjugate surd of
2
−
√
3
is
2
+
√
3
=
(
2
+
√
3
)
×
2
−
√
3
2
−
√
3
=
4
−
3
2
−
√
3
=
1
2
−
√
3
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