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The least value of $\mid z_1+z_2\mid$ if $z_1=24+7i$ and $|z_2|=6$ is :

$\begin{array}{1 1}(A)\;19&(B)\;25\\(C)\;31&(D)\;\text{None}\end{array} $

Can you answer this question?
 
 

1 Answer

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Least value =Distance AC
$\Rightarrow OC-OA$
$\Rightarrow \sqrt{(24)^2+(7)^2}-6$
$\Rightarrow 25-6=19$
Hence (A) is the correct answer.
answered Apr 10, 2014 by sreemathi.v
 

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