Math, asked by dipalisutar4321, 4 months ago

in the following form of atib
Express
(1+2i) (-2+i).

Answers

Answered by ayushiagarwal694

1

Answer:

= -2 + i -4i + 2i^2

= -2 -3i +2(-1) ( i^2 = -1)

= -2 -3i - 2

= -4 - 3i

= - (4+ 3i)

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