question below:

Find the matrix function X_ 1 (t) whose value at t is the inverse of the given matrix X(t). t 7t 6 X(t) = et 33\" 2 X_1(t)=|:| Find the first four nonzero terms in a power series expansion about x = 0 for a general solution to the given differential equation. ( x2 + 6) y"+y=0 y(x) = + ... (Type an expression in terms of an and a, that includes all terms up to order 3.)