Mathematics - Circle Question with Solution | TestHub

MathematicsCircleTangent & NormalMedium2 minPYQ_2020
MathematicsMediumnumerical

The numbers of integral values ofkfor which the line,3x+4y=kintersects the circle,x2+y2-2x-4y+4=0at two distinct points is....

Answer:
9.00
Solution:

If distance from center to line is less than radius then line cut circle at two distinct point.

Center of circle (1,2), r=1

3+8-k5<1

11-k<5

-5<11-k<5  k(6,16)

k=7,8,9,10,11,12,13,14,15

Number of values of k=9.

Stream:JEESubject:MathematicsTopic:CircleSubtopic:Tangent & Normal
2mℹ️ Source: PYQ_2020

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