conjugate of (3-2i)(2+3i) divided by (1+2i)(2-i)
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(3-2i)(2+3i)=6+9i-4i+6
=12+5i
then conjugate of 12+5i=12-5i
ATQ
(12-5i)/(1+2i)(2-i)
=(12-5i)/(4+3i)
both numerator and denominator multiple by (4-3i)
(12-5i)×(4-3i)/(4+3i)(4-3i)
=48-36i+20i-15/(4)^2-(3i)^2
=33-56i/16+9
33/25 - 56i/25
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