Math, asked by sudesh16, 6 months ago

(1+i)^−3
plz tell me how to derive this??

Answers

Answered by Anonymous

5

Answer:

= 2i - 2

Step-by-step explanation:

(1 + i)^3

= (1 + i)(1 + i)(1 + i)

= (1 + i + i + i²)(1 + i)

= (1 + 2i - 1)(1 + i)

= 2i(1 + i)

= 2i + 2i²

= 2i - 2

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