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If z(1)=2-i, z(2)=1+ 2i, then find the ...

If ` z_(1)=2-i, z_(2)=1+ 2i,` then find the value of the following :
(i) `Re((z_(1)*z_(2))/(bar(z)_(2)))`
(ii) ` Im (z_(1)*bar(z)_(2))`

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The correct Answer is:
N/a
(i) `-(2)/(5)`
(ii) `-5`
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NAGEEN PRAKASHAN ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATION -EXERCISE 5B
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