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Standard VIII
Mathematics
Algebraic Identities
Question
Using standard identity, find the value of
102
2
.
10402
10204
10408
10404
A
10408
B
10402
C
10404
D
10204
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Solution
Verified by Toppr
Given,
102
2
=
(
100
+
2
)
2
.
We know,
(
a
+
b
)
2
=
a
2
+
2
a
b
+
b
2
.
Then,
102
2
=
(
100
+
2
)
2
=
100
2
+
2
2
+
2
(
2
)
(
100
)
=
10000
+
4
+
400
=
10404
.
Therefore, option
D
is correct.
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