The integral $ \int_0^1 \frac{1}{2 + \sqrt{2e}} \, dx $ is:
Evaluate: \[ \int_1^5 \left( |x-2| + |x-4| \right) \, dx \]
If $\phi(x)=\frac{1}{\sqrt{ x }} \int_{\frac{\pi}{4}}^x\left(4 \sqrt{2} \sin t-3 \phi^{\prime}(t)\right) dt , x>$, then $\emptyset^{\prime}\left(\frac{\pi}{4}\right)$ is equal to :