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Aptitude miscellaneous
= x
2
+ y
2
+
1
+
1
= 4, then the value of x
2
+ y
2
is
x
2
y
2
2
4
8
16
Correct Option:
A
x
2
+ y
2
+
1
+
1
− 4 = 0
x
2
y
2
⇒ x
2
+
1
− 2 + y
2
+
1
− 2 = 0
x
2
y
2
⇒
x −
1
2
+
y −
1
2
= 0
x
y
⇒ x −
1
= 0
x
⇒ x
2
− 1 = 0 ⇒ x = 1
Similarly,
y = 1
∴ x
2
+ y
2
= 1 + 1 = 2
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