Q.
If z=(λ+3)+i5−λ2 then the locus of z is a
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a
Circle
b
Sphere
c
Straight line
d
None of these
answer is A.
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Detailed Solution
x+iy=λ+3+i5−λ2⇒x=λ+3 and y=5−λ2 ∴(x−3)2+y2=5
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