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If z1a n dz2 are two complex numbers sat...

If `z_1a n dz_2` are two complex numbers satisfying `|z-4|=R e(z)` and having greatest and least principal argument respectively, then area of triangle formed by origin, `z_1&z_2` is 10 sq. units (b) 12 sq. units 16 sq. units (d) 20 sq. units

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