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If |2z-1|=|z-2| and z1, z2, z3 are compl...

If `|2z-1|=|z-2| and z_1, z_2, z_3` are complex numbrs such that `|z_1-alpha|ltalpha, |z_2-beta|ltbeta. `Then `(z_1+z_2)/(alpha+beta)|=` (A) `lt|z|` (B) `lt2|z|` (C) `gt|z|` (D) `gt2|z|`

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