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Difference in the values of the radius o...

Difference in the values of the radius of a circle whose center is at the origin and which touches the circle `x^2+y^2-6x-8y+21=0` is_____________

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CENGAGE PUBLICATION-CONIC SECTIONS-All Questions
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  11. State whether the statement is True or False: The line x+3y=0 is a dia...

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  14. Prove that the locus of the point that moves such that the sum of the ...

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