Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 12: $\text{họ nguyên hàm của hàm số}$ $\dfrac{1}{1+8^x}$

Toán Lớp 12: $\text{họ nguyên hàm của hàm số}$
$\dfrac{1}{1+8^x}$

Comments ( 1 )

  1. I=int1/(1+8^x)dx
    Đặt t=8^x=>dt=8^xln8dx=>dx=1/(8^xln8)dx
    Khi đó, I=1/ln8 int1/(t(t + 1)) dt
    =1/ln8 int(1/t-1/(t + 1)) dt
    =1/ln8(ln|t|-ln|t+1|)+C
    =1/ln8[ln8^x-ln(8^x+1)]+C

Leave a reply

222-9+11+12:2*14+14 = ? ( )

About Madelyn