KCET 2012 Math Solved Paper

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Question : 10 of 60

Marks: +1, -0

If conjugate of (x+iy)(1−2i) isv 1 + i, then

x−iy=
1+iy
1−2i
x−iy=
1+i
1−2i
x=
1
5
x=−
1
5

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