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

2025 · 22 Jan · Shift 1 · Q27
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Complex Numbers
  5. /2025 · 22 Jan · Shift 1 · Q27

Complex Numbers question

2025 · 22 Jan · Shift 1 · Q27

JEE MainMathematicsComplex NumbersMCQ+4 / −1
Let z1,z2z_1, z_2z1​,z2​ and z3z_3z3​ be three complex numbers on the circle ∣z∣=1|z|=1∣z∣=1 with arg⁡(z1)=−π4,arg⁡(z2)=0\arg \left(z_1\right)=\frac{-\pi}{4}, \arg \left(z_2\right)=0arg(z1​)=4−π​,arg(z2​)=0 and arg⁡(z3)=π4\arg \left(z_3\right)=\frac{\pi}{4}arg(z3​)=4π​. If ∣z1zˉ2+z2zˉ3+z3zˉ1∣2=α+β2,α,β∈Z\left|z_1 \bar{z}_2+z_2 \bar{z}_3+z_3 \bar{z}_1\right|^2=\alpha+\beta \sqrt{2}, \alpha, \beta \in Z∣z1​zˉ2​+z2​zˉ3​+z3​zˉ1​∣2=α+β2​,α,β∈Z, then the value of α2+β2\alpha^2+\beta^2α2+β2 is :
  1. A
    41
  2. B
    29
  3. C
    24
  4. D
    31
PreviousNext

More from Complex Numbers

  • Let the curve z(1+i)+zˉ(1−i)=4,z∈C, divide the region ∣z−3∣≤1 into two parts of areas α and β. Then ∣α−β∣ equals :2025 · MCQ
  • Let ​2zˉ+izˉ−i​​=31​,z∈C, be the equation of a circle with center at C. If the area of the triangle, whose vertices are at the points (0,0),C and (α,0) is 11 square units, then α2…2025 · MCQ
  • The number of complex numbers z, satisfying ∣z∣=1 and ​zˉz​+zzˉ​​=1, is :2025 · MCQ
  • Let α,β be the roots of the equation x2−ax−b=0 with Im(α)<Im(β). Let Pn​=αn−βn. If P3​=−57​i,P4​=−37​i,P5​=117​i…2025 · Numerical
  • If α and β are the roots of the equation 2z2−3z−2i=0, where i=−1​, then 16⋅Re(α15+β15α19+β19+α11+β11​)⋅lm(α15+β15α19+β19+α11+β11​)…2025 · MCQ
  • Let O be the origin, the point A be z1​=3​+22​i, the point B(z2​) be such that 3​∣z2​∣=∣z1​∣ and arg(z2​)=arg(z1​)+6π​. Then2025 · MCQ
  • If α+iβ and γ+iδ are the roots of x2−(3−2i)x−(2i−2)=0, i=−1​, then αγ+βδ is equal to:2025 · MCQ
  • Let ∣z1​−8−2i∣≤1 and ∣z2​−2+6i∣≤2, z1​,z2​∈C. Then the minimum value of ∣z1​−z2​∣ is :2025 · MCQ