1. Show that for all z1, Z2 E C, Then we have: |Z1 + z2| < ]z1]+ |z2| 2. Show that for all z1, Z2 E C, Then we have: |Izı| – |z2|| < |21 + z2|

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A: let z1 = x1+iy , z2 = x2+iy2

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A: Using series

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