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Saturday, 31 October

JEE Main 2022 · MathsMultiple choiceSingle correctMediumMulti-step

JEE Main 26 July 2022, Shift 2, Maths Q13

Question 13 of 90 in this shift, Maths question 13 of 30, Section A.

Let the abscissae of the two points P and Q on a circle be the roots of x2−4x−6=0x^2-4x-6=0 and the ordinates of P and Q be the roots of y2+2y−7=0y^2+2y-7=0. If PQ is a diameter of the circle x2+y2+2ax+2by+c=0x^2+y^2+2ax+2by+c=0, then the value of (a+b−c)(a+b-c) is __________.
  1. (1)1212Official answer
  2. (2)1313
  3. (3)1414
  4. (4)1616

Official answer

Option 1

NTA final key.

Chapter
Conic Sections
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.