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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
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Decimal Fraction
4.2 x 4.2 - 1.9 x 1.9 is equal to: 2.3 x 6.1
0.5
1.0
20
22
Show Answer
Correct Answer:
1.0
Explanation:
Given Expression =
(
a
2
-
b
2
)
=
(
a
2
-
b
2
)
= 1.
(
a
+
b
)(
a
-
b
)
(
a
2
-
b
2
)
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