Anh ho cong tu, anh adnham giup em voi!?

1)Tinh tich phan tu 0 den pi cua: can bac hai cua (1+sin2x)dx

2)Giai va bien luan:4^/x/ -2^(/x/ +1) -m=0

3)tim m de pt :[3^ (x+canbachai(12-3x))] - 81 / (m^2 -1) =0 co 2 nghiem phan biet

4)cho pt [3^(cos^2(x) -mcos(x)] -[3^3cos^2(x) +3] =2cos^2(x) +mcos(x) +3 .Tim m de pt co nghiem

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