A tangent to the hyperbola y=1/(2x), x>0 cuts the y-axis at the point y=2.
Find the gradient of this tangent.
Things we know:
Point on the tangent: (0,2)
Gradient of tangent: m = -1/(2x12), where x1 is the point that the tangent cuts the hyperbola.
Equation of tangent: y - 2 = m(x -...