Sqrt is being defined as a variable name, how do i get its math function function? (python)

Can someone with my technology homework? ? i’m not very good with rulers. i need it asap though

Write c function that can replace all the positive elements to 0 and negative to 1 in undefined length one-dimensional array. test your program in the main program by defining one-dimensional array of 6 elements

Exchanging which type of data uses the least bandwidth? music photographs video voice bandwidth- the amount of data that can be moved between two points in a set time period