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10. Suppose X is a Gaussian random Mariab h mean f and covariance matrix E. in n dimensions. a. Let B be an n x in real matrix The scalar random variable } = X'BX is referred to as a quadratic fou (in morial variables). Show that if B is not symmetric, it's coethcients can be arranged intoll-X AX where A is an a X n symmetric matrix. b. Find E(X'AX) CTETAX)