UPSEE 2019 Solved Paper

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Question : 105 of 150

Marks: +1, -0

Let z=x+ iy be a complex number. The equation arg (

z+1

z

)=

π

4

represents

x2+x+y+y2=0
x2−x+y+y2=0
x2+x−y+y2=0
x2+x+y−y2=0

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