integral batas atas 2 batas bawah 0 2x+4 diper (x kuadrat+4x-1) kuadrat dx

InTegraL

Misal :
u = x² + 4x - 1
du = (2x + 4) dx

∫(2x + 4)/(x² + 4x - 1)² dx [2...0]
= ∫u^-2 du
= 1/-1 . u^-1
= -1/(x² + 4x - 1)
= (-1/(2² + 4.2 - 1)) - (-1/(0 + 0 - 1))
= -1/11 - 1
= -12/11