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Saturday, 31 October

Same idea in other shifts

Asked 12× in all
  1. 2 Apr 2026, Shift 2 · Q1Let α,β\alpha, \beta be the roots of the equation x2−3x+r=0x^2 - 3x + r = 0, and α2,2β\frac{\alpha}{2}, 2\beta be the roots of the equation…MediumSingle correct
  2. 3 Apr 2025, Shift 1 · Q4Let z∈Cz \in \mathbb{C} be such that z2+3iz−2+i=2+3i\frac{z^2 + 3i}{z - 2 + i} = 2 + 3i. Then the sum of all possible values of z2z^2 isMediumSingle correct
  3. 31 Jan 2024, Shift 2 · Q3Let z1z_1 and z2z_2 be two complex numbers such that z1+z2=5z_1+z_2=5 and z13+z23=20+15iz_1^3+z_2^3=20+15i. Then, ∣z14+z24∣|z_1^4+z_2^4| equals -HardSingle correct
  4. 24 Jun 2022, Shift 1 · Q7If the sum of the squares of the reciprocals of the roots α\alpha and β\beta of the equation 3x2+λx−1=03x^2+\lambda x-1=0 is 15, then…MediumSingle correct
  5. 25 Jun 2022, Shift 2 · Q2Let a,b∈Ra, b \in \mathbb{R} be such that the equation ax2−2bx+15=0ax^2 - 2bx + 15 = 0 has a repeated root α\alpha. If α\alpha and β\beta are the…MediumSingle correct
  6. 26 Jun 2022, Shift 2 · Q22Let pp and qq be two real numbers such that p+q=3p + q = 3 and p4+q4=369p^4 + q^4 = 369. Then (1p+1q)−2\left(\frac{1}{p} + \frac{1}{q}\right)^{-2} is…MediumNumerical value
  7. 27 Jun 2022, Shift 2 · Q22Let α,β\alpha, \beta be the roots of the equation x2−4λx+5=0x^2-4\lambda x+5=0 and α,γ\alpha, \gamma be the roots of the equation…HardNumerical value
  8. 29 Jun 2022, Shift 1 · Q8Let α\alpha and β\beta be the roots of the equation x2+(2i−1)=0x^2 + (2i - 1) = 0. Then, the value of ∣α8+β8∣|\alpha^8 + \beta^8| is equal to :MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.