If the line hx+KY=1/a touches the circle x²+y²=a² then the locus of (h,k) is circle of radius1)1/a2)a²3)a4)1/a²
If the line hx+KY=1/a touches the circle x²+y²=a² then the locus of (h,k) is circle of radius
1)1/a
2)a²
3)a
4)1/a²
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