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Q.

If z1=2i3 and z2=xiy and  z2z1=0 then find x, y values are

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a

2,3

b

5,6

c

-1,0

d

-3,-2

answer is D.

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Detailed Solution

xiy(2i3)=0xiy2i+3=0(x+3)+i(y2)=0+i(0)
Comparing coefficients
x+3=0 x=-3          -y-2=0 -y=2 y=-2

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If z1=2i−3 and z2=x−iy and  z2−z1=0 then find x, y values are