JEE Main · 2023 · 30 Jan 2023 · Shift 2 · Area Under Curves

WhatsApp Email
Let be the maximum integral value of in for which the roots of the equation are rational. Then the area of the region is
  1. (A)243✓ Correct
  2. (B)25
  3. (C)
  4. (D)164

Answer: (A)

Solution

Rational roots of require the discriminant to be a perfect square. Testing integers in , this holds for (giving ), so the largest such value is . The region has area .

JEE Main · 2023 · 30 Jan 2023 · Shift 2 · Single correct option

More JEE Main questions on Area Under Curves

  1. The area of the region, inside the ellipse and outside the region bounded by the curves and , is :
    JEE Main 2026View solution →
  2. If the area of the region is , , , then the value of is :
    JEE Main 2026View solution →
  3. Let the line divide the area of the region in the ratio . Then is equal to
    JEE Main 2026View solution →
  4. The area of the region
    is :
    JEE Main 2026View solution →
  5. Let the area of the region bounded by the curve , lines , and the x-axis be A. Then, is equal to ______.
    JEE Main 2026View solution →
  6. The area of the region enclosed between the circles and is :
    JEE Main 2026View solution →