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Questions  

 Tangents are drawn from any point on the circle x2+y2=41 to the ellipse x225+y216=1 then the angle between the two tangents is

a
π4
b
π3
c
π6
d
π2

detailed solution

Correct option is D

Given circle is director circle, so angle between tangents isπ2

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y=mx+c c is a normal to the ellipse

x2/a2+y2/b2=1 if  c2  is equal to 


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