Please help solve these problems: Give the LaTeX formatting with the dollar signs.,for example "$$( \frac{0}{0} )$$"

4.1. Consider a bivariate normal distribution with M1 = 1, /2 = 3, 611 = 2, 022 = 1 and p12 = -.8. a. Write out the bivariate normal density. b. Write out the squared statistical distance expression (x - M)')-(x - u) as a quadratic function of x1 and x2. 4.2. Consider a bivariate normal population with M1 = 0, /2 = 2, 011 = 2, 022 = 1, and p12 =. 5. a. Write out the bivariate normal density. b. Write out the squared generalized distance expression (x - M)'E-1(x - p) as a function of x1 and x2. c. Determine (and sketch) the constant-density contour that contains 50% of the probability