find the solution set for z given that,
|z+a| + |z-a| = |a|
where a = real number
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2 Answers
Asish Mahapatra
·2010-12-29 06:27:20
|z+a| + |z-a| ≥ |z+a - (z-a)|
= |2a|
So, there doesnt exist any z for which abv eqn gives a soln
pritishmasti ...............
·2010-12-29 08:07:51
thanks ashish
another one
find the solution set for 'z' satisfying :
arg(z - (5+i)z - (1+i)) = π4