Mr. V solutions: 8, 20, 28
1 3 5 7 <html>✅</html> 8 9 10 11 13 15 17 19 20 21 23 25 27 28 29 31 33 35 37 39 41 53
![{\displaystyle {\frac {d}{dx}}\left[\int _{a(x)}^{b(x)}f(t)\,dt\right]=b'(x)\cdot f(b(x))-a'(x)\cdot f(a(x))}](https://en.wikipedia.org/api/rest_v1/media/math/render/svg/c6f2ad892079726c9f73d80191ed33deb30fc239)
![{\displaystyle {\frac {d}{dx}}\left[F(x)\right]=f(x)}](https://en.wikipedia.org/api/rest_v1/media/math/render/svg/3a5307d913d3c9aa3aa8e81954173adc0f657140)
