I am gonna assume it is C)9/4 - 1/2i
Answer:
C
Step-by-step explanation:
Answer:
110 students
Step-by-step explanation:
The number of students who have only taken calculus is given by the number of students who have taken calculus minus the students who have taken both classes:
![C =100 -50\\C= 50\ students](https://tex.z-dn.net/?f=C%20%3D100%20-50%5C%5CC%3D%2050%5C%20students)
The number of students who have only taken discrete mathematics given by the number of students who have taken discrete mathematics minus the students who have taken both classes:
![D =110 -50\\C= 60\ students](https://tex.z-dn.net/?f=D%20%3D110%20-50%5C%5CC%3D%2060%5C%20students)
The number of students that have taken a course in either calculus or discrete mathematics is:
![E = C+D = 50+60\\E= 110\ students](https://tex.z-dn.net/?f=E%20%3D%20C%2BD%20%3D%2050%2B60%5C%5CE%3D%20110%5C%20students)
Answer:
![h'(x)=\frac{3r^{2}}{2\sqrt{r^3+5}}](https://tex.z-dn.net/?f=h%27%28x%29%3D%5Cfrac%7B3r%5E%7B2%7D%7D%7B2%5Csqrt%7Br%5E3%2B5%7D%7D)
Step-by-step explanation:
1) The Fundamental Theorem of Calculus in its first part, shows us a reciprocal relationship between Derivatives and Integration
![g(x)=\int_{a}^{x}f(t)dt \:\:a\leqslant x\leqslant b](https://tex.z-dn.net/?f=g%28x%29%3D%5Cint_%7Ba%7D%5E%7Bx%7Df%28t%29dt%20%5C%3A%5C%3Aa%5Cleqslant%20x%5Cleqslant%20b)
2) In this case, we'll need to find the derivative applying the chain rule. As it follows:
![h(x)=\int_{a}^{x^{2}}\sqrt{5+r^{3}}\therefore h'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left (\int_{a}^{x^{2}}\sqrt{5+r^{3}}\right )\\h'(x)=\sqrt{5+r^{3}}\\Chain\:Rule:\\F'(x)=f'(g(x))*g'(x)\\h'=\sqrt{5+r^{3}}\Rightarrow h'(x)=\frac{1}{2}*(r^{3}+5)^{-\frac{1}{2}}*(3r^{2}+0)\Rightarrow h'(x)=\frac{3r^{2}}{2\sqrt{r^3+5}}](https://tex.z-dn.net/?f=h%28x%29%3D%5Cint_%7Ba%7D%5E%7Bx%5E%7B2%7D%7D%5Csqrt%7B5%2Br%5E%7B3%7D%7D%5Ctherefore%20h%27%28x%29%3D%5Cfrac%7B%5Cmathrm%7Bd%7D%20%7D%7B%5Cmathrm%7Bd%7D%20x%7D%5Cleft%20%28%5Cint_%7Ba%7D%5E%7Bx%5E%7B2%7D%7D%5Csqrt%7B5%2Br%5E%7B3%7D%7D%5Cright%20%29%5C%5Ch%27%28x%29%3D%5Csqrt%7B5%2Br%5E%7B3%7D%7D%5C%5CChain%5C%3ARule%3A%5C%5CF%27%28x%29%3Df%27%28g%28x%29%29%2Ag%27%28x%29%5C%5Ch%27%3D%5Csqrt%7B5%2Br%5E%7B3%7D%7D%5CRightarrow%20h%27%28x%29%3D%5Cfrac%7B1%7D%7B2%7D%2A%28r%5E%7B3%7D%2B5%29%5E%7B-%5Cfrac%7B1%7D%7B2%7D%7D%2A%283r%5E%7B2%7D%2B0%29%5CRightarrow%20h%27%28x%29%3D%5Cfrac%7B3r%5E%7B2%7D%7D%7B2%5Csqrt%7Br%5E3%2B5%7D%7D)
3) To test it, just integrate:
![\int \frac{3r^{2}}{2\sqrt{r^3+5}}dr=\sqrt{r^{3}+5}+C](https://tex.z-dn.net/?f=%5Cint%20%5Cfrac%7B3r%5E%7B2%7D%7D%7B2%5Csqrt%7Br%5E3%2B5%7D%7Ddr%3D%5Csqrt%7Br%5E%7B3%7D%2B5%7D%2BC)