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Discover Questions

What is the domain and range of this graph in interval notation? Also would be helpful if you could explain how you got the values? Set up equations for the tangents drawn from the point A(1,6) to the circle given by x^2 + y^2 + 2x -19=0? Prove that 2C(n, 2) + n^2 = C(2n, 2)for n>=2? An ellipse has a foci at f1(0,0) and f2(0,14) and passes through the vertex of the parabola x=y^2 -10y +37. Find equation of the ellipse? Find the critical number for the function f(x)=2x^3+x^2+2?