Question

Express
in the form
each complesc number
a+ib

1). (2+3i) (4-5i)​

Answer 1

Answer:

idk

Step-by-step explanation:

idk idk idk

Answer 2

Answer:

(5−3i)

3

=−10+198i

(ii)

1−

2

i

5+

2

i

=

1−

2

i

5+

2

i

×

1+

2

i

1+

2

i

=

1

2

−2i

2

5+5

2

i+

2

i+2i

2

=

1+2

5+6

2

i−2

=

3

3+6

2

i

1−

2

i

5+

2

i

=1+2

2

i

Step-by-step explanation:

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