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the area of the triangle on the argand diagram formed by the complex number z, iz and z + iz is

Answer :

manitkapoor2
this is simple 
let P represent z on argand plane
iz is a point is at right angle to line from P to origin
so it's area is (1/2)|iz||z|=(|z|)²/2
the area of the triangle formed is (|z|)²/2

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