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RRB Junior Engineer Stage 1 Model Papers 1
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© examsnet.com
Question : 27
Total: 100
The square root of
(
√
3
+
√
2
√
3
−
√
2
)
is
√
3
+
√
2
√
3
−
√
2
√
2
±
√
3
√
2
−
√
3
Validate
Solution:
Expression
=
(
√
3
+
√
2
)
(
√
3
−
√
2
)
Rationalizing the denominator,
=
(
√
3
+
√
2
)
(
√
3
+
√
2
)
(
√
3
−
√
2
)
(
√
3
+
√
2
)
=
(
√
3
+
√
2
)
2
3
−
2
=
(
√
3
+
√
2
)
2
∴
√
√
3
+
√
2
√
3
−
√
2
=
√
(
√
3
+
√
2
)
2
=
√
3
+
√
2
© examsnet.com
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