Question

3) Simplify the following and express in the
form a+ib
1) (1+2/i) (3+4/i) (5-i)-1
​

Answer 1

Step-by-step explanation:

(1−i)

2

(1+i)−(3−4i)

2

=(1−2i+i

2

)(1+i)−(9−24i+16i

2

)

=1−2i−1+i+2−i−9+24i+16

=(9+22i)

Which is of the form a+ib.

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