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Byju's Answer
Standard XII
Mathematics
Complex Numbers
Find the mult...
Question
Find the multiplicative inverse of the complex numbers given the following:
4
−
3
i
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Solution
Let multiplicative inverse of
4
−
3
i
be
x
⇒
x
=
1
4
−
3
i
Rationalize the denominator
⇒
x
=
1
4
−
3
i
×
4
+
3
i
4
+
3
i
⇒
x
=
4
+
3
i
4
2
−
(
3
i
)
2
⇒
x
=
4
+
3
i
16
−
(
−
9
)
=
4
+
3
i
16
+
9
⇒
x
=
4
+
3
i
25
The
multiplicative inverse of
4
−
3
i
is
4
+
3
i
25
Suggest Corrections
2
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