1.

For z = 2 + 3i, verify the following: (z + \(\bar z\)) is real

Answer»

(z + \(\bar z\)) = (2 + 3i) + (2 – 3i)

= 2 + 3i + 2 – 3i

= 4, which is a real number.

∴ z + \(\bar z\) is real.



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