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Byju's Answer
Standard VII
Mathematics
Expanding a Rational Number Using Powers
Find the valu...
Question
Find the value of the following:
a
)
(
67.542
)
2
−
(
32.458
)
2
75.458
−
40.374
b
)
(
−
3
)
0
−
(
−
3
)
3
−
(
−
3
)
−
1
+
(
−
3
)
4
−
(
−
3
)
−
2
[4 MARKS]
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Solution
Application: 2 Marks Each
a
)
(
67.542
)
2
−
(
32.458
)
2
75.458
−
40.374
=
(
67.542
+
32.458
)
(
67.542
−
32.458
)
75.458
−
40.374
=
100
×
35.084
35.084
=
100
b
)
(
−
3
)
0
−
(
−
3
)
3
−
(
−
3
)
−
1
+
(
−
3
)
4
−
(
−
3
)
−
2
=
1
+
27
+
1
3
+
81
−
1
9
=
109
+
2
9
=
109
2
9
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Q.
Find the value of
(
67.542
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2
−
(
32.458
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2
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−
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