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Find the angle between the two tangents from the origin to the circle `(x-7)^2+(y+1)^2=25`

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
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  10. If the circles x^2+y^2+2a x+c y+a=0 and x^2+y^2-3a x+d y-1=0 intersec...

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  11. Find the angle at which the circles x^2+y^2+x+y=0 and x^2+y^2+x-y=0 in...

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  17. Prove that the pair of straight lines joining the origin to the points...

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