Question

1. What is integral of tan x dx?

2. What is d/dx sin x?

3. What is integral of e^3x dx?

4. What is d/dx e^7x?

Answer 1

1. $\int$ tan x dx = - ln |Cos x| + C = ln |sec x| + C.
2. $\dfrac{dsinx}{dx}=cosx .$
3. $∫e^{3x} dx=e^{3x} \dfrac{1}{3} + c$
4. 7$e^{7x}$ .