For any two complex numbers z(1)" and "z...

For any two complex numbers `z_(1)" and "z_(2)` prove that
(i) `Re(z_(1)z_(2))=Re(z_1) Re(z_2)-Im(z_1)Im(z_2)`.

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NCERT TAMIL-COMPLEX NUMBERS AND QUADRATIC EQUATIONS -MISCELLANEOUS EXERCISES ON CHAPTER 6

For any two complex numbers z(1)" and "z(2) prove that (i) Re(z(1)z(...
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