If \( \left|z_{1}\right|=1,\left|z_{2}\right|=2,\left|z_{3}\right|=3 \) and
\( \left|9 z_{1} z_{.... VIDEO
If \( \left|z_{1}\right|=1,\left|z_{2}\right|=2,\left|z_{3}\right|=3 \) and
\( \mathrm{P} \)
\( \left|9 z_{1} z_{2}+4 z_{1} z_{3}+z_{2} z_{3}\right|=12 \) then the value of \( \left|z_{1}+z_{2}+z_{3}\right| \) is
(1) 3
(2) 4
(3) 2
(4) None of these
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