MEDIUM
JEE Main
IMPORTANT
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Let the minimum value v0 of v=z2+z-32+z-6i2, z is attained at z=z0. Then 2z02-z¯03+32+v02 is equal to

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Important Questions on Complex Numbers

MEDIUM
JEE Main
IMPORTANT
Let S=z:z2+z¯=0. Then zSRez+Imz is equal to _______.
HARD
JEE Main
IMPORTANT
Let S be the set of all α,β,π<α,β<2π, for which the complex number 1-isinα1+2isinα is purely imaginary and 1+icosβ1-2icosβ is purely real. Let Zαβ=sin2α+icos2β,α,βS.
Then α,βSiZαβ+1iZ¯αβ is equal to
HARD
JEE Main
IMPORTANT
Let S1=z1C:z1-3=12 and S2=z2C:z2-z2+1=z2+z2-1. Then, for z1S1 and z2S2, the least value of z2-z1 is
MEDIUM
JEE Main
IMPORTANT
Let z=a+ib, b0 be complex numbers satisfying z2=z¯·21-z. Then the least value of nN, such that zn=z+1n, is equal to _____ .
HARD
JEE Main
IMPORTANT
If z0 be a complex number such that z-1z=2, then the maximum value of z is
MEDIUM
JEE Main
IMPORTANT
Let S=z=x+iy:z-1+iz,z<2,z+i=z-1.  Then the set of all values of x, for which w=2x+iyS for some y, is
MEDIUM
JEE Main
IMPORTANT
Let p, q and (1-3i)200=2199(p+iq)i=-1. Then, p+q+q2 and p-q+q2 are roots of the equation.