Question

Find the value of (i+1)(i+2).
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Answer 1

hope this helps and also( iota)² is -1

Answer 2

Question :-

$(i + 1)(i + 2)$

Answer is :-

$i(i + 2) + 1(i + 2)$

${i}^{2} + 2i + i + 2$

${i}^{2} + 3i + 2$

Here, is the required Answer.

Hope it helps you dear.......xd