Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Complex Numbers question

2022 · 25 Jul · Shift 1 · Q23
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Complex Numbers
  5. /2022 · 25 Jul · Shift 1 · Q23

Complex Numbers question

2022 · 25 Jul · Shift 1 · Q23

JEE MainMathematicsComplex NumbersMCQ+4 / −1
For n∈N\mathrm{n} \in \mathbf{N}n∈N, let Sn={z∈C:∣z−3+2i∣=n4}\mathrm{S}_{\mathrm{n}}=\left\{z \in \mathbf{C}:|z-3+2 i|=\frac{\mathrm{n}}{4}\right\}Sn​={z∈C:∣z−3+2i∣=4n​} and Tn={z∈C:∣z−2+3i∣=1n}\mathrm{T}_{\mathrm{n}}=\left\{z \in \mathbf{C}:|z-2+3 i|=\frac{1}{\mathrm{n}}\right\}Tn​={z∈C:∣z−2+3i∣=n1​}. Then the number of elements in the set {n∈N:Sn∩Tn=ϕ}\left\{n \in \mathbf{N}: S_{n} \cap T_{n}=\phi\right\}{n∈N:Sn​∩Tn​=ϕ} is :
  1. A
    0
  2. B
    2
  3. C
    3
  4. D
    4
PreviousNext

More from Complex Numbers

  • For z∈C if the minimum value of (∣z−32​∣+∣z−p2​i∣) is 52​, then a value Question: of p is ​.2022 · MCQ
  • Let a circle C in complex plane pass through the points z1​=3+4i, z2​=4+3i and z3​=5i. If z(ez1​) is a point on C such that the line through z and z1 is perpendicular to the line through z2 and z3, then arg(z)…2022 · MCQ
  • Let z1 and z2 be two complex numbers such that z1​=iz2​ and arg(z2​z1​​)=π. Then :2022 · MCQ
  • Let O be the origin and A be the point z1​=1+2i. If B is the point z2​, Reolimits(z2​)<0, such that OAB is a right angled isosceles triangle with OB as hypotenuse, then which of the following is NOT…2022 · MCQ
  • If z=x+iy satisfies ∣z∣−2=0 and ∣z−i∣−∣z+5i∣=0, then :2022 · MCQ
  • Let A={z∈C:​z−1z+1​​<1} and B={z∈C:arg(z+1z−1​)=32π​}. Then A ∩ B is :2022 · MCQ
  • If z2+z+1=0, z∈C, then ​n=1∑15​(zn+(−1)nzn1​)2​ is equal to ​.2022 · Numerical
  • Let the minimum value v0​ of v=∣z∣2+∣z−3∣2+∣z−6i∣2,z∈C is attained at z=z0​. Then ​2z02​−zˉ03​+3​2+v02​ is equal to :2022 · MCQ