williampagan1227 williampagan1227

15-11-2021
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If z1 = 2+3i and z2 = -5i +9, find re (z1 + z2) is.

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LammettHash LammettHash

15-11-2021

Given z₁ = 2 + 3i and z₂ = 9 - 5i, we have

z₁ + z₂ = (2 + 3i) + (9 - 5i) = 11 - 2i

so that

Re(z₁ + z₂) = 11

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