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If |z2+i z1|=|z1|+|z2|a n d|z1|=3a n d|z...

If `|z_2+i z_1|=|z_1|+|z_2|a n d|z_1|=3a n d|z_2|=4,` then the area of ` triangleA B C ,` if affixes of `A ,B ,a n dCa r ez_1, z_2, a n d[(z_2-i z_1)/(1-i)]` respectively, is `5/2` b. `0` c.`(25)/2` d. `(25)/4`

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