Compute (44 · 47 + 12) mod 3 without a calculator.

IN PYTHON A tridiagonal matrix is one where the only nonzero elements are the ones on the main diagonal and the ones immediately above and below it.Write a function that solves a linear system whose coefficient matrix is tridiag- onal. In this case, Gauss elimination can be made much more efficient because most elements are already zero and don't need to be modified or added. As an example, consider a linear system Ax = b with 100,000 unknowns and the same number of equations. The coefficient matrix A is tridiagonal, with all elements on the main diagonal equal to 3 and all elements on the diagonals above and below it equal to 1. The vector of constant terms b contains all ones, except that the first and last elements are zero. You can use td to find that x1= −0.10557. The following code format should help: def td(l, m, u, b):   '''Solve a linear system Ax = b where A is tridiagonal      Inputs: l, lower diagonal of A, n-1 vector            m, main diagonal of A, n vector            u,…

The density of an object is 2 g/cm3. To convert this to kg/m3, we need to divide it by 1000 to change grams to kilograms. Then, we need to multiply it by 10 to the power of what number to change cm3 to m3.

let n = 1*3*5*....*197*199 (the product of first 100 odd numbers)   find the last 2 digits of n