circle

Related Questions

• If the radius of the circle ${{x}^{2}}+{{y}^{2}}$ $-18x+12y+k=0$ be 11, then $k=$

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• The equation of the chord of contact, if the tangents are drawn from the point (5, –3) to the circle ${{x}^{2}}+{{y}^{2}}=10$ , is

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• A line $lx+my+n=0$ meets the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ at the points P and Q. The tangents drawn at the points P and Q meet at R, then the coordinates of R is

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• The equation $2{{x}^{2}}+2{{y}^{2}}+4x+8y+15=0$ represents

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• The equation of normal to the circle $2{{x}^{2}}+2{{y}^{2}}-2x-5y+3=0$ at (1, 1) is

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