cho em hoi 2 cau tich phan nay voi
1, \int\limits_{0}^{\frac{\pi }{6}}\sin x^{6}+\cos x^{6}
/\sin x^{4}+\cos x^{4} -\frac{1}{2}
2, \int\limits_{\frac{\pi }{4}}^{\frac{\pi }{2}}\sin x^{4}
/\sin x^{4}+\cos x^{4} Em cam on a
cho em hoi 2 cau tich phan nay voi
1,
$\int\limits_{0}^{
$\frac{\pi }{6}
$}
$$\frac{\sin x^{6}+\cos x^{6}
}{\sin x^{4}+\cos x^{4} -
$\frac{1}{2}
$}$2,
$\int\limits_{
$\frac{\pi }{4}
$}^{
$\frac{\pi }{2}
$}
$$\frac{\sin x^{4}
}{\sin x^{4}+\cos x^{4}
}$Em cam on a