Pls answer me
1/√2
_____
1/√2+ 1/√2 × 1/2
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Class 9
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>>Rationalisation of the deno...
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Rationalisation of the denominator of :
5
+
2
1
gives :
Easy
Solution
verified
Verified by Toppr
Correct option is
D
3
(
5
−
2
)
In the given question
5
+
2
1
Onrationalisingthenumber
=
5
+
2
1
×
5
−
2
5
−
2
Onapplying(a+b)(a−b)=a
2
−b
2
=
5
2
−
2
2
5
−
2
=
5−2
5
−
2
=
3
5
−
2
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