Question: If P (x) = tan (x) + + in a first order linear ordinary differential equation ar + P (x) y = Q (x), the

If P (x) = tan (x) + + in a first order linear ordinary differential equation ar + P (x) y = Q (x), the integrating factor is O ex sec (z) O x cos(a) O x sec (ac) O er sec(ac)

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