Mathematics - Circle Question with Solution | TestHub

MathematicsCircleMiscellaneous/MixedMedium2 minPYQ_2018
MathematicsMediumsingle choice

Paragraph: LetSbe the circle in the xy – plane defined by the equationx2 + y2 = 4.

Question : Let P be a point on the circle S with both coordinates being positive. Let the tangent to S at P intersect the coordinate axes at the points M and MN Then, the mid-point of the line segment must lie on the curve

Options:

Answer:
D
Solution:


Tangent atP2cosθ,2sinθis xcosθ+ysinθ=2
M2secθ,0 and N0,2cosceθ
Let midpoint be (h, k)
h=secθ,k=cosceθ
1h2+1k2=1
1x2+1y2=1

Stream:JEE_ADVSubject:MathematicsTopic:CircleSubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2018

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