Cari dy/dx jika y=u-1/u+1 dan u=✓x

jawb


y = (u -1)/(u+1)
dy./du = 2/ (u+1)²

u = x^(1/2)
du/dx = 1/(2√x)

dy/dx = dy/du . du/dx

dy/dx = 2/(√x  + 1)² . 1./(2 √x)

dy/dx =  2/ (√x + 1)² (2√x)