ljdm5125 ljdm5125 01-02-2024 Mathematics contestada Let y=f(x) be a twice-differentiable function such that f(-1)=5 and dy/dx = 1/5 (xy²+4y)². What is the value of d²y/dx² at x=-1 ? A. -190 B. -70 C. -2 D. 10