1.

are conjugate complex numbers.ve that (1-2i

Answer»

(2-i)/(1-2i)^2=(2-i)/1-4-4i=(2-i)/(-3-4i) Rationalising=(2-i)*(-3+4i)/(-3-4i)(-3+4i)=-6+8i+3i+4/25=-2+11i/25hence they are complex conjugates



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