Let T and C respectively, be the transverse and conjugate axes of the hyperbola 16x^2-y^2+64x+4y+44=0. Then the area of the region above the parabola…
JEE Main 2023 — Mathematics Calculus
2023mcqhard
Let T and C respectively, be the transverse and conjugate axes of the hyperbola 16x2−y2+64x+4y+44=0. Then the area of the region above the parabola x2=y+4, below the transverse axis T and on the right of the conjugate axis C is:
Official previous-year question
Held on 25 Jan 2023 · Verified 6 Jul 2026.
Options
A
46+344
B
46+328
C
46−344
D
46−328
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Solution
Given,
Equation of hyperbola,
16(x2+4x)−(y2−4y)+44=0
⇒16(x+2)2−64−(y−2)2+4+44=0
⇒16(x+2)2−(y−2)2=16
⇒1(x+2)2−16(y−2)2=1
Hence, equation of conjugate axis will be x=−2 and equation of transverse axis is given by y=2,
Now plotting the diagram of parabola x2=y+4 and x=-2&y=2 we get,
Now from above diagram, the area of the bounded region is given by,
A=∫−26(2−(x2−4))dx
⇒A=∫−26(6−x2)dx=(6x−3x3)−26
⇒A=(66−366)−(−12+38)
⇒A=3126+328
⇒A=46+328
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