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Tardigrade
Question
Mathematics
If Z1=1+2 i and Z2=2+3 i, then sum of Z1 and additive inverse of Z2 is equal to
Q. If
Z
1
=
1
+
2
i
and
Z
2
=
2
+
3
i
, then sum of
Z
1
and additive inverse of
Z
2
is equal to
495
158
Complex Numbers and Quadratic Equations
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A
1
+
2
i
11%
B
3
+
i
22%
C
3
+
5
i
44%
D
−
1
−
i
22%
Solution:
z
1
−
1
+
2
i
;
z
2
−
2
+
3
i
Additive inverse of
z
2
=
−
2
−
3
i
z
1
+
(
−
z
2
)
=
1
+
2
i
−
2
−
3
i
=
−
1
−
i