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Byju's Answer
Standard XII
Mathematics
Infinite GP
Find the valu...
Question
Find the value of
y
(
y
−
3
)
12
y
2
×
72
y
2
y
2
−
3
2
A
y
2
y
+
3
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B
y
(
y
−
3
)
y
+
3
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C
6
y
2
(
y
)
y
+
3
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D
6
y
y
+
3
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Solution
The correct option is
D
6
y
y
+
3
y
(
y
−
3
)
12
y
2
×
72
y
2
y
2
−
3
2
We know that
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
So,
(
y
−
3
)
12
y
×
72
y
2
(
y
+
3
)
(
y
−
3
)
On simplifying we get,
=
6
y
y
+
3
Suggest Corrections
0
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