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If z(1)=5-7i and z(2)=7-9i, verify: (i...

If `z_(1)=5-7i and z_(2)=7-9i`, verify:
(i) `|-z_(1)|=|z_(1)|`
(ii) `|z_(1)z_(2)|=|z_(1)||z_(2)|`

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if z_(1)=3+4i and z_(2)=12-5i , verify: (i) |-z_(1)|=|z_(1)| (ii) |z_(1)+z_(2)|lt|z_(1)|+|z_(2)| (iii) |z_(1)z_(2)|=|z_(1)||z_(2)| .

If z_(1) =3 -4i and z_(2) = 5 + 7i ,verify (i) |-z_(1)| =|z_(1)| (ii) |z_(1) +z_(2)| lt |z_(2)|

Knowledge Check

  • If z_(1)= 4-3i and z_(2) = 3 + 9i " then " z_(1) -z_(2) is

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    B
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