JEE Advanced 2020 Concept Recapitulation Test 2 Paper 1

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Question : 39 of 54
 
Marks: +1, -0
Let z1=a+ib and z2=c+id be two complex numbers such that |z1|=|z2|=1 and Re(z1z2)=0. If a,b>0 and c<0, then
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