tinh tich phan: (e^x-1)^4 e^x.dx
x^2/ (x-2)^3 .dx
A =∫(e^x-1)^4 e^x.dx
A =∫(e^x-1)^4 d(e^x-1)
A = (e^5-1)\5 + C
B = ∫x²\ (x-2)³ .dx
đặt a= x-2
B = ∫(a+2)²\ a³ .da
B = ∫(1\a + 2\a² + 1\a³) .da
B = lna -2\a - 1\2a² + C
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A =∫(e^x-1)^4 e^x.dx
A =∫(e^x-1)^4 d(e^x-1)
A = (e^5-1)\5 + C
B = ∫x²\ (x-2)³ .dx
đặt a= x-2
B = ∫(a+2)²\ a³ .da
B = ∫(1\a + 2\a² + 1\a³) .da
B = lna -2\a - 1\2a² + C