Question

3
Simplify
+
3+4i
2-4
1-2i 1+i​

Answer 1

Step-by-step explanation:

Simplifying, we get

(

1+i−2i+2

1+i+3−6i

)(

2−4i

3+4i

)

(

3−i

4−5i

)(

2−4i

3+4i

)

Hence

3−i

4−5i

.

2−4i

3+4i

=

6−12i−2i−4

12+16i−15i+20

=

2−14i

32+i

=

200

(32+i)(2+14i)

=

200

64+448i+2i−14

=

200

50+450i

=

4

1+9i

.