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Byju's Answer
Standard XII
Mathematics
Properties of Modulus
If | z 1|=2,|...
Question
If
|
z
1
|
=
2
,
|
z
2
|
=
3
,
then the maximum value of
|
z
1
+
z
2
+
5
+
12
i
|
is
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Solution
Given
|
z
1
|
=
2
,
|
z
2
|
=
3
We know,
|
z
1
+
z
2
+
⋯
+
z
n
|
≤
|
z
1
+
|
z
2
|
+
⋯
+
|
z
n
|
∴
|
z
1
+
z
2
+
(
5
+
12
i
)
|
≤
|
z
1
+
|
z
2
|
+
|
5
+
12
i
|
⇒
|
z
1
+
z
2
+
(
5
+
12
i
)
|
≤
2
+
3
+
13
⇒
|
z
1
+
z
2
+
(
5
+
12
i
)
|
≤
18
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0
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Properties of Modulus
Standard XII Mathematics
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