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Standard VIII
Mathematics
Question
x
=
√
5
−
2
√
5
+
2
and
y
=
√
5
+
2
√
5
−
2
.
Find the value of
x
y
.
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Solution
Verified by Toppr
Given,
y
=
√
5
+
2
√
5
−
2
,
x
=
√
5
−
2
√
5
+
2
.
x
×
y
=
√
5
+
2
√
5
−
2
×
√
5
−
2
√
5
+
2
∴
x
×
y
=
1
.
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x
=
√
5
−
2
√
5
+
2
and
y
=
√
5
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2
√
5
−
2
.
Find the value of
x
y
.
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Q2
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2
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.
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