The roots of the quadratic equation ax² + bx + c = 0₁ a 0 are given by the following formula: - b ± √b² - 4ac 2a In this formula, the term b² - 4ac is called the discriminant. If b² - 4ac = 0, then the equation has a single (repeated) root. If

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 circuit diagram below shows resistors connected in series. owww... W R₁ R₂ Rn (image source: https://commons.wikimedia.org/wiki/File:Resistors_in_series.svg) The equivalent resistance for n resistors connected in series is given by: 77 Requiv == ΣR₁ R₁+R₂+ Σ R₁ = R₁ + R₂+ R3 + ... + Rn i Code has already been provided to create three variables containing resistor values: Resistor1, Resistor2, and Resistor3. Write commands to compute the equivalent resistance of the four possible series connections of two or three of these resistors and assign the results to the indicated variables as follows: B Compute the equivalent resistance of Resistorl and Resistor2 connected in series and assign the result to a variable named EquivResistance12. Compute the equivalent resistance of Resistorl and Resistor3 connected in series and assign the result to a variable named EquivResistance13. . Compute the equivalent resistance of Resistor2 and Resistor3 connected in series and assign the result to a…

None