L
linhnga1


giup minh bai nay nhe!
pi/4
1. \int_{}^{}dx / ((cos3x)^2 .(1+ tan3x))
0
1
2.\int_{}^{}x^7 / (1+x^4)^2
0
cam on cac ban truoc nhe!!
pi/4
1. \int_{}^{}dx / ((cos3x)^2 .(1+ tan3x))
0
1
2.\int_{}^{}x^7 / (1+x^4)^2
0
cam on cac ban truoc nhe!!