1. The curve below has a horizontal tangent line at the point (5,2)(5,2) and at one other point. Find the coordinates of the second point where the curve has a horizontal tangent line. 25x²250x+4y²+24y=561 x-coordinate of second point = y-coordinate of second point =

2. Let f(x)=x⁷(x-5)⁴/(x²+4)⁵

Use logarithmic differentiation to determine the derivative. f(x)= f(5)=