2.11.3 Can you answer these questions?

2.11.3.1 Simplify Equation with variable unequal to zero

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230846

How can I simplify the following equation with Mathematica assuming z!=0? I have the following code:

asked by Franz Ferdinand https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74882 1 vote

2.11.3.2 finding primes using chebyshev bias

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230943

Using the problem from my previous question link. For each n, that is n= \(10^3\) to \(10^6\) with a ten-fold increase, how do I use Chebyshev Bias to display the number of primes (which are in the ...

asked by complab56 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74866 1 vote

2.11.3.3 Why does NDSolve not give consistent results?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230784

This is my code:

asked by S.J.E. Huisman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74858 1 vote